TA Ta, v. t. (continued 13)

1. A snare; a trapan. Snares and trepans that common life lays in its way. South.

2. a deceiver; a cheat. He had been from the beginning a spy and a trepan. Macaulay.

TREPAN Tre*pan", v. t.

Defn: To insnare; to trap; to trapan. Guards even of a dozen men were silently trepanned from their stations. De Quincey.

TREPANG Tre*pang", n. Etym: [Malay tripang.] (Zoöl.)

Defn: Any one of several species of large holothurians, some of which are dried and extensively used as food in China; — called also bêche de mer, sea cucumber, and sea slug. [Written also tripang.]

Note: The edible trepangs are mostly large species of Holothuria, especially H. edulis. They are taken in vast quantities in the East Indies, where they are dried and smoked, and then shipped to China. They are used as an ingredient in certain kinds of soup.

TREPANIZE Trep"an*ize, v. t.

Defn: To trepan. [Obs.] "By trepanizing the skull." Jer. Taylor.

TREPANNER Tre*pan"ner, n.

Defn: One who trepans. " Pitiful trepanners and impostors." Gauden.

TREPEGET Trep"e*get, n. (Mil.)

Defn: A trebuchet. [Obs.]

TREPHINE Tre*phine", n. Etym: [A dim. of 1st trepan: cf. F. tréphine.] (Surg.)

Defn: An instrument for trepanning, being an improvement on the trepan. It is a circular or cylindrical saw, with a handle like that of a gimlet, and a little sharp perforator called the center pin.

TREPHINE Tre*phine", v. t. [imp. & p. p. Trephined; p. pr. & vb. n. Trephining.]

Defn: To perforate with a trephine; to trepan.

TREPID Trep"id, a. Etym: [L. trepidus.]

Defn: Trembling; quaking. Thackeray.

TREPIDATION Trep`i*da"tion, n. Etym: [F. trépidation, L. trepidatio, fr. trepidare to hurry with alarm, to tremble, from trepidus agitated, disturbed, alarmed; cf. trepit he turns, Gr. torture.]

1. An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear; quaking; quivering.

2. Hence, a state of terror or alarm; fear; confusion; fright; as, the men were in great trepidation.

3. (Anc. Astron.)

Defn: A libration of the starry sphere in the Ptolemaic system; a motion ascribed to the firmament, to account for certain small changes in the position of the ecliptic and of the stars.

Syn. — Tremor; agitation; disturbance; fear.

TREPIDITY Tre*pid"i*ty, n.

Defn: Trepidation. [R.]

TRESAYLE Tres"ayle` (três"al`), n. Etym: [F. trisaïeul, from L. tris, tres, three + F. aïeul grandfather. Cf. Besaiel, and see Ayle.]

Defn: A grandfather's grandfather. [Obs.] Writ of tresayle (O. Eng. Law), a writ which lay for a man claiming as heir to his grandfather's grandfather, to recover lands of which he had been deprived by an abatement happening on the ancestor's death. Mozley & W.

TRESOR Tres"or, n.

Defn: Treasure. [Obs.] Chaucer.

TRESPASS Tres"pass, v. i. [imp. & p. p. Trespassed; p. pr. & vb. n. Trespassing.] Etym: [OF. trespasser to go across or over, transgress, F. trépasser to die; pref. tres- (L. trans across, over) + passer to pass. See Pass, v. i., and cf. Transpass.]

1. To pass beyond a limit or boundary; hence, to depart; to go. [Obs.] Soon after this, noble Robert de Bruce . . . trespassed out of this uncertain world. Ld. Berners.

2. (Law)

Defn: To commit a trespass; esp., to enter unlawfully upon the land of another.

3. To go too far; to put any one to inconvenience by demand or importunity; to intrude; as, to trespass upon the time or patience of another.

4. To commit any offense, or to do any act that injures or annoys another; to violate any rule of rectitude, to the injury of another; hence, in a moral sense, to transgress voluntarily any divine law or command; to violate any known rule of duty; to sin; — often followed by against. In the time of his distress did he trespass yet more against the Lord. 2 Chron. xxviii. 22.

TRESPASS Tres"pass, n. Etym: [OF. tr, F. trépas death. See Trespass, v.]

1. Any injury or offence done to another. I you forgive all wholly this trespass. Chaucer. If ye forgive not men their trespasses, neither will your Father forgive your trespasses. Matt. vi. 15.

2. Any voluntary transgression of the moral law; any violation of a known rule of duty; sin. The fatal trespass done by Eve. Milton. You . . . who were dead in trespasses and sins. Eph. if. 1.

3. (Law) (a) An unlawful act committed with force and violence (vi et armis) on the person, property, or relative rights of another. (b) An action for injuries accompanied with force. Trespass offering (Jewish Antiq.), an offering in expiation of a trespass. — Trespass on the case. (Law) See Action on the case, under Case.

Syn. — Offense; breach; infringement; transgression; misdemeanor; misdeed.

TRESPASSER Tres"pass*er, n.

Defn: One who commits a trespass; as: (a) (Law) One who enters upon another's land, or violates his rights. (b) A transgressor of the moral law; an offender; a sinner.

TRESS Tress, n. Etym: [OE. tresse, OF. trece, F. tresse, LL. tricia, fr. Gr. tri`cha threefold, because a tress is usually formed by interlacing three pieces; akin to trei^s three. See Three.]

1. A braid, knot, or curl, of hair; a ringlet. Her yellow hair was braided in a tress. Chaucer. Fair tresses man's imperial race insnare. Pope.

2. Fig.: A knot or festoon, as of flowers. Keats.

TRESSED Tressed, a.

1. Having tresses.

2. Formed into ringlets or braided; braided; curled. Spenser. Drayton.

TRESSEL Tres"sel, n.

Defn: A trestle.

TRESSFUL Tress"ful, a.

Defn: Tressy. [R.] Sylvester.

TRESSURE Tres"sure, n. Etym: [F. tresser to twist, plait. See Tress, n.] (Her.)

Defn: A kind of border similar to the orle, but of only half the breadth of the latter.

TRESSURED Tres"sured, a. (Her.)

Defn: Provided or bound with a tressure; arranged in the form of a tressure. The tressured fleur-de-lis he claims To wreathe his shield. Sir W. Scott.

TRESSY Tress"y, a.

Defn: Abounding in tresses. J. Baillie.

TRES-TINE Tres"-tine`, n. [Cf. L. tris, tres, three, and E. tyne, tine, a prong.]

Defn: The third tine above the base of a stag's antler; the royal antler.

TRESTLE Tres"tle, n. Etym: [OF. trestel, tresteay, F. tréteau; probably from L. transtillum a little crossbeam, dim. of transtrum a crossbeam. Cf. Transom.] [Written also tressel.]

1. A movable frame or support for anything, as scaffolding, consisting of three or four legs secured to a top piece, and forming a sort of stool or horse, used by carpenters, masons, and other workmen; also, a kind of framework of strong posts or piles, and crossbeams, for supporting a bridge, the track of a railway, or the like.

2. The frame of a table. Trestle board, a board used by architects, draughtsmen, and the like, for drawing designs upon; — so called because commonly supported by trestles. — Trestle bridge. See under Bridge, n.

TRESTLETREE Tres"tle*tree`, n. (Naut.)

Defn: One of two strong bars of timber, fixed horizontally on the opposite sides of the masthead, to support the crosstrees and the frame of the top; — generally used in the plural. Totten.

TRESTLEWORK Tres"tle*work`, n.

Defn: A viaduct, pier, scaffold, or the like, resting on trestles connected together.

TRES-TYNE Tres"-tyne`, n. Etym: [L. tris, tres, three + E. tyne.] (Zoöl.)

Defn: In the antler of a stag, the third tyne above the base. This tyne appears in the third year. In those deer in which the brow tyne does not divide, the tres-tyne is the second tyne above the base. See Illust. under Rucervine, and under Rusine.

TRET Tret, obs.

Defn: 3d pers. sing. pres. of Tread, for treadeth. Chaucer.

TRET Tret, n. Etym: [F. traite a drawing, trading, journey, tax on wares in transit, anything diminishing the value of coins, fr. OF. traire to draw, L. trahere. See Trait.] (Com.)

Defn: An allowance to purchasers, for waste or refuse matter, of four pounds on every 104 pounds of suttle weight, or weight after the tare deducted. M'Culloch.

TRETABLE Tret"a*ble, a. Etym: [See Treatable.]

Defn: Tractable; moderate. [Obs.] By nature debonaire and tretable. Chaucer.

TRETHING Treth"ing, n. Etym: [W. treth an allowance, contribution, tribute, or tax, trethu to rate or tax.]

Defn: A tax; an impost. [Obs.] Johnson.

TRETIS; TRETYS Tre"tis, Tre"tys, n. Etym: [See Treatise.]

Defn: A treatise; also, a treaty. [Obs.] Chaucer.

TRETIS; TRETYS Tre*tis", Tre*tys", a. Etym: [OF. traitis.]

Defn: Long and well-proportioned; nicely made; pretty. [Obs.] "Her nose tretys." Chaucer.

TREVAT Tre"vat, n.

Defn: A weaver's cutting instrument; for severing the loops of the pile threads of velvet.

TREVET Trev"et, n. Etym: [See Trivet.]

Defn: A stool or other thing supported by three legs; a trivet.

TREW; TREWE Trew, Trewe, a.

Defn: True. [Obs.] Chaucer.

TREWS Trews, n. pl.

Defn: Trowsers; especially, those of the Scotch Highlanders. "He wore the trews, or close trowsers, made of tartan." Sir W. Scott.

TREWTH Trewth, n.

Defn: Truth. [Obs.] Chaucer.

TREY Trey, n. Etym: [OF. treis three, F. trois, L. tres. See Three, and cf. Tray-trip.]

Defn: Three, at cards, dice, or dominoes; a card, die, or domino of three spots or pips. Seven is my chance and thine is cinq and trey. Chaucer.

TRI- Tri-. Etym: [Gr. tri- or L. tri-, sometimes through French; akin to L. tres three, and E. three. See Three.]

1. A prefix meaning three, thrice, threefold; as in tricolored, tridentate.

2. (Chem.)

Defn: A prefix (also used adjectively) denoting three proportional or combining part, or the third degree of that to the name of which it is prefixed; as in trisulphide, trioxide, trichloride.

TRIABLE Tri"a*ble, a. Etym: [From Try.]

1. Fit or possible to be tried; liable to be subjected to trial or test. "Experiments triable." Boyle.

2. (Law)

Defn: Liable to undergo a judicial examination; properly coming under the cognizance of a court; as, a cause may be triable before one court which is not triable in another.

TRIABLENESS Tri"a*ble*ness, n.

Defn: Quality or state of being triable.

TRIACID Tri*ac"id, a. Etym: [Pref. tri- + acid.] (Chem.)

Defn: Capable of neutralizing three molecules of a monobasic acid or the equivalent; having three hydrogen atoms which may be acid radicals; — said of certain bases; thus, glycerin is a triacid base.

TRIACLE Tri"a*cle, n.

Defn: See Treacle. [Obs.] Chaucer.

TRIACONTAHEDRAL Tri`a*con`ta*he"dral, a. Etym: [Gr.

Defn: Having thirty sides.

TRIACONTER Tri"a*con`ter, n. Etym: [Gr. (Gr. Antiq.)

Defn: A vessel with thirty banks of oars, or, as some say, thirty ranks of rowers.

TRIAD Tri"ad, n. Etym: [L.trias, -adis, Gr. triade. See Three, and cf. Trias, Trio.]

1. A union of three; three objects treated as one; a ternary; a trinity; as, a triad of deities.

2. (Mus.) (a) A chord of three notes. (b) The common chord, consisting of a tone with its third and fifth, with or without the octave.

3. (Chem.)

Defn: An element or radical whose valence is three. Triads of the Welsh bards, poetical histories, in which the facts recorded are grouped by threes, three things or circumstances of a kind being mentioned together. — Hindoo triad. See Trimurti.

TRIADELPHOUS Tri`a*del"phous, a. Etym: [Pref. tri- + Gr. (Bot.)

Defn: Having stamens joined by filaments into three bundles. See Illust. under Adelphous.

TRIADIC Tri*ad"ic, a. (Chem.)

Defn: Having the characteristics of a triad; as, boron is triadic.

TRIAKISOCTAHEDRON Tri"a*kis*oc`ta*he"dron, n. Etym: [Gr. octahedron.] (Crystalloq.)

Defn: A trigonal trisoctahedron.

TRIAL Tri"al, n. Etym: [From Try.]

1. The act of trying or testing in any manner. Specifically: — (a) Any effort or exertion of strength for the purpose of ascertaining what can be done or effected. [I] defy thee to the trial of mortal fight. Milton.

(b) The act of testing by experience; proof; test. Repeated trials of the issues and events of actions. Bp. Wilkins.

(c) Examination by a test; experiment, as in chemistry, metallurgy, etc.

2. The state of being tried or tempted; exposure to suffering that tests strength, patience, faith, or the like; affliction or temptation that exercises and proves the graces or virtues of men. Others had trial of cruel mockings and scourgings. Heb. xi. 36.

3. That which tries or afflicts; that which harasses; that which tries the character or principles; that which tempts to evil; as, his child's conduct was a sore trial. Every station is exposed to some trials. Rogers.

4. (Law)

Defn: The formal examination of the matter in issue in a cause before a competent tribunal; the mode of determining a question of fact in a court of law; the examination, in legal form, of the facts in issue in a cause pending before a competent tribunal, for the purpose of determining such issue.

Syn. — Test; attempt; endeavor; effort; experiment; proof; essay. See Test, and Attempt.

TRIAL BALANCE Tri"al bal`ance. (Bookkeeping)

Defn: The testing of a ledger to discover whether the debits and credits balance, by finding whether the sum of the personal credits increased by the difference between the debit and credit sums in the merchandise and other impersonal accounts equals the sum of personal debits. The equality would not show that the items were all correctly posted.

TRIALITY Tri*al"i*ty, n. Etym: [L. tres, tria, three.]

Defn: Three united; state of being three. [R.] H. Wharton.

TRIALOGUE Tri"a*logue, n. Etym: [LL.trialogus; tri- (see Tri-) + -logus as, in L. dialogus, E. dialogue.]

Defn: A discourse or colloquy by three persons.

TRIAMIDE Tri*am"ide, n. Etym: [tri- + amine.] (Chem.)

Defn: An amide containing three amido groups.

TRIAMINE Tri*am"ine, n. Etym: [Pref. tri- + amine.] (Chem.)

Defn: An amine containing three amido groups.

TRIANDER Tri"an`der, n. (Bot.)

Defn: Any one of the Triandria.

TRIANDRIA Tri*an"dri*a, n. pl. Etym: [NL. See Tri-, and -androus.] (Bot.)

Defn: A Linnæan class of plants having three distinct and equal stamens.

TRIANDRIAN; TRIANDROUS Tri*an"dri*an, Tri*an"drous, a. Etym: [Cf. F. triandre.] (Bot.)

Defn: Of or pertaining to the Triandria; having three distinct and equal stamens in the same flower.

TRIANGLE Tri"an`gle, n. Etym: [L. triangulum, fr. triangulus triangular; tri- (see Tri-) + angulus angle: cf. F. triangle. See Angle a corner.]

1. (Geom.)

Defn: A figure bounded by three lines, and containing three angles.

Note: A triangle is either plane, spherical, or curvilinear, according as its sides are straight lines, or arcs of great circles of a sphere, or any curved lines whatever. A plane triangle is designated as scalene, isosceles, or equilateral, according as it has no two sides equal, two sides equal, or all sides equal; and also as right-angled, or oblique-angled, according as it has one right angle, or none; and oblique-angled triangle is either acute-angled, or obtuse-angled, according as all the angles are acute, or one of them obtuse. The terms scalene, isosceles, equilateral, right-angled, acute-angled, and obtuse-angled, are applied to spherical triangles in the same sense as to plane triangles.

2. (Mus.)

Defn: An instrument of percussion, usually made of a rod of steel, bent into the form of a triangle, open at one angle, and sounded by being struck with a small metallic rod.

3. A draughtsman's square in the form of a right-angled triangle.

4. (Mus.)

Defn: A kind of frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment, — now disused.

5. (Astron.) (a) A small constellation situated between Aries and Andromeda. (b) A small constellation near the South Pole, containing three bright stars. Triangle spider (Zoöl.), a small American spider (Hyptiotes Americanus) of the family Ciniflonidæ, living among the dead branches of evergreen trees. It constructs a triangular web, or net, usually composed of four radii crossed by a double elastic fiber. The spider holds the thread at the apex of the web and stretches it tight, but lets go and springs the net when an insect comes in contact with it.

TRIANGLED Tri"an`gled, a.

Defn: Having three angles; triangular.

TRIANGULAR Tri*an"gu*lar, a. Etym: [L. triangularis: cf. F. triangulaire.]

1. Having three angles; having the form of a triangle.

2. (Bot.)

Defn: Oblong or elongated, and having three lateral angles; as, a triangular seed, leaf, or stem. Triangular compasses, compasses with three legs for taking off the angular points of a triangle, or any three points at the same time. — Triangular crab (Zoöl.), any maioid crab; — so called because the carapace is usually triangular. — Triangular numbers (Math.), the series of numbers formed by the successive sums of the terms of an arithmetical progression, of which the first term and the common difference are 1. See Figurate numbers, under Figurate.

TRIANGULARES Tri*an`gu*la"res, n. pl. Etym: [L.] (Zoöl.)

Defn: The triangular, or maioid, crabs. See Illust. under Maioid, and Illust. of Spider crab, under Spider.

TRIANGULARITY Tri*an`gu*lar"i*ty, n.

Defn: The quality or state of being triangular. Bolingbroke.

TRIANGULARLY Tri*an"gu*lar*ly, adv.

Defn: In a triangular manner; in the form of a triangle. Dampier.

TRIANGULATE Tri*an"gu*late, v. t. [imp. & p. p. Triangulated; p. pr. & vb. n. Triangulating.]

1. To divide into triangles; specifically, to survey by means of a series of triangles properly laid down and measured.

2. To make triangular, or three-cornered.

TRIANGULATION Tri*an`gu*la"tion, n. Etym: [Cf. F. triangulation.] (Surv.)

Defn: The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometrical survey; the operation of measuring the elements necessary to determine the triangles into which the country to be surveyed is supposed to be divided, and thus to fix the positions and distances of the several points connected by them.

TRIARCHY Tri"ar*chy, n.; pl. Triarchies. Etym: [Gr. Tri-) +

Defn: Government by three persons; a triumvirate; also, a country under three rulers. Holland.

TRIARIAN Tri*a"ri*an, a. Etym: [L. triarii, pl., a class of Roman soldiers who formed the third rank from the front, fr. tres, tria, three.]

Defn: Occupying the third post or rank. [Obs.] Cowley.

TRIARTICULATE Tri`ar*tic"u*late, a. Etym: [Pref. tri- + articulate.] (Zoöl.)

Defn: Having three joints.

TRIAS Tri"as, n. Etym: [L., triad. See Triad.] (Geol.)

Defn: The formation situated between the Permian and Lias, and so named by the Germans, because consisting of three series of strata, which are called in German the Bunter sandstein, Muschelkalk, and Keuper.

TRIASSIC Tri*as"sic, a. (Geol.)

Defn: Of the age of, or pertaining to, the Trias. — n.

Defn: The Triassic formation.

TRIATIC Tri*at"ic, a. (Naut.)

Defn: A term used in the phrase triatic stay. See under Stay.

TRIATOMIC Tri`a*tom"ic, a. Etym: [Pref. tri- + atomic.] (Chem.) (a) Having three atoms; — said of certain elements or radicals. (b) Having a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.

TRIBAL Trib"al, a.

Defn: Of or pertaining to a tribe or tribes; as, a tribal scepter. Bp. Warburton.

TRIBALISM Trib"al*ism, n.

Defn: The state of existing in tribes; also, tribal feeling; tribal prejudice or exclusiveness; tribal peculiarities or characteristics.

TRIBASIC Tri*ba"sic, a. Etym: [Pref. tri- + basic.] (Chem.)

Defn: Capable of neutralizing three molecules of a monacid base, or their equivalent; having three hydrogen atoms capable of replacement by basic elements on radicals; — said of certain acids; thus, citric acid is a tribasic acid.

TRIBBLE Trib"ble, n. (Paper Manuf.)

Defn: A frame on which paper is dried. Knight.

TRIBE Tribe, n. Etym: [L. tribus, originally, a third part of the Roman people, afterwards, a division of the people, a tribe; of uncertain origin: cf. F. tribu.]

1. A family, race, or series of generations, descending from the same progenitor, and kept distinct, as in the case of the twelve tribes of Israel, descended from the twelve sons of Jacob. "The Lion of the tribe of Juda." Rev. v. 5. A wealthy Hebrew of my tribe. Shak.

2. (Bot.)

Defn: A number of species or genera having certain structural characteristics in common; as, a tribe of plants; a tribe of animals.

Note: By many recent naturalists, tribe has been used for a group of animals or plants intermediate between order and genus.family is between order and genus.

3. A nation of savages or uncivilized people; a body of rude people united under one leader or government; as, the tribes of the Six Nations; the Seneca tribe.

4. A division, class, or distinct portion of a people, from whatever cause that distinction may have originated; as, the city of Athens was divided into ten tribes.

5. (Stock Breeding)

Defn: A family of animals descended from some particular female progenitor, through the female line; as, the Duchess tribe of shorthorns.

TRIBE Tribe, v. t.

Defn: To distribute into tribes or classes. [R.] Our fowl, fish, and quadruped are well tribed. Abp. Nicolson.

TRIBLET; TRIBOLET Trib"let, Trib"o*let, n.} Etym: [F. triboulet.]

1. A goldsmith's tool used in making rings. Ainsworth.

2. A steel cylinder round which metal is drawn in the process of forming tubes. Tomlinson.

3. (Blacksmithing)

Defn: A tapering mandrel.

TRIBOMETER Tri*bom"e*ter, n. Etym: [Gr. -meter: cf. F. tribomètre.]

Defn: An instrument to ascertain the degree of friction in rubbing surfaces. Brande & C.

TRIBRACH Tri"brach, n. Etym: [L. tribrachys, Gr. Tri-) + (Gr. & L. Pros.)

Defn: A poetic foot of three short syllables, as, mèlì\'dcs.

TRIBRACTEATE Tri*brac"te*ate, a. Etym: [Pref. tri- + bracteate.] (Bot.)

Defn: Having three bracts.

TRIBROMOPHENOL; TRIBROMPHENOL Tri*bro`mo*phe"nol, Tri`brom*phe"nol, n. (Chem.)

Defn: A colorless crystalline substance prepared by the reaction of carbolic acid with bromine.

TRIBUAL; TRIBULAR Trib"u*al, Trib"u*lar, a.

Defn: Of or relating to a tribe; tribal; as, a tribual characteristic; tribular worship. [R.] The tribual lispings of the Ephraimites. Fuller.

TRIBULATION Trib`u*la"tion, n. Etym: [OE. tribulacium, F. tribulation, L. tribulatio, from tribulare to press, afflict, fr. tribulum a thrashing sledge, akin to terere, tritum, to rub. See Trite.]

Defn: That which occasions distress, trouble, or vexation; severe affliction. When tribulation or persecution ariseth because of the word, by and by he is offended. Matt. xiii. 21. In the world ye shall have tribulation. John. xvi. 33.

TRIBUNAL Tri*bu"nal, n. Etym: [L. tribunal, fr. tribunus a tribune who administered justice: cf. F. tribunal. See Tribune.]

1. The seat of a judge; the bench on which a judge and his associates sit for administering justice.

2. Hence, a court or forum; as, the House of Lords, in England, is the highest tribunal in the kingdom.

TRIBUNARY Trib"u*na*ry, a.

Defn: Of or pertaining to tribunes; as, tribunary powers or authority.

TRIBUNATE Trib"u*nate, n. Etym: [L. tribunatus: cf. F. tribunat.]

Defn: The state or office of a tribune; tribuneship.

TRIBUNE Trib"une, n. Etym: [L. tribunus, properly, the chief of a tribe, fr. tribus tribe: cf. F. tribun. See Tribe.]

1. (Rom. Antiq.)

Defn: An officer or magistrate chosen by the people, to protect them from the oppression of the patricians, or nobles, and to defend their liberties against any attempts that might be made upon them by the senate and consuls.

Note: The tribunes were at first two, but their number was increased ultimately to ten. There were also military tribunes, officers of the army, of whom there were from four to six in each legion. Other officers were also called tribunes; as, tribunes of the treasury, etc.

2. Anciently, a bench or elevated place, from which speeches were delivered; in France, a kind of pulpit in the hall of the legislative assembly, where a member stands while making an address; any place occupied by a public orator.

TRIBUNESHIP Trib"une*ship, n.

Defn: The office or power of a tribune.

TRIBUNICIAN; TRIBUNITIAL; TRIBUNITIAN Trib`u*ni"cian, Trib`u*ni"tial, Trib`u*ni*tian, a. Etym: [L. tribunicius, tribunitius: cf. F. tribunitien.]

Defn: Of or pertaining to tribunes; befitting a tribune; as, tribunitial power or authority. Dryden. A kind of tribunician veto, forbidding that which is recognized to be wrong. Hare.

TRIBUNITIOUS Trib`u*ni"tious, a.

Defn: Tribunician; tribunitial. [Obs.] Bacon.

TRIBUTARILY Trib"u*ta*ri*ly, adv.

Defn: In a tributary manner.

TRIBUTARINESS Trib"u*ta*ri*ness, n.

Defn: The quality or state of being tributary.

TRIBUTARY Trib"u*ta*ry, a. Etym: [OE. tributaire, F. tributaire, L. tributarius. See Tribute.]

1. Paying tribute to another, either from compulsion, as an acknowledgment of submission, or to secure protection, or for the purpose of purchasing peace. [Julius] unto Rome made them tributary. Chaucer.

2. Hence, subject; subordinate; inferior. He to grace his tributary gods. Milton.

3. Paid in tribute. "Tributary tears." Shak.

4. Yielding supplies of any kind; serving to form or make up, a greater object of the same kind, as a part, branch, etc.; contributing; as, the Ohio has many tributary streams, and is itself tributary to the Mississippi.

TRIBUTARY Trib"u*ta*ry, n.; pl. Tributaries (.

1. A ruler or state that pays tribute, or a stated sum, to a conquering power, for the purpose of securing peace and protection, or as an acknowledgment of submission, or for the purchase of security.

2. A stream or river flowing into a larger river or into a lake; an affluent.

TRIBUTE Trib"ute, n. Etym: [OE. tribut, L. tributum, fr. tribuere, tributum, to bestow, grant, pay, allot, assign, originally, to a tribe, from tribus tribe; cf. F. tribut. See Tribe, and cf. Attribute, Contribute.]

1. An annual or stated sum of money or other valuable thing, paid by one ruler or nation to another, either as an acknowledgment of submission, or as the price of peace and protection, or by virtue of some treaty; as, the Romans made their conquered countries pay tribute. Millions for defense, but not one cent for tribute. C. C. Pinckney.

2. A personal contribution, as of money, praise, service, etc., made in token of services rendered, or as that which is due or deserved; as, a tribute of affection. Implores the passing tribute of a sigh. Gray.

3. (Mining)

Defn: A certain proportion of the ore raised, or of its value, given to the miner as his recompense. Pryce. Tomlinson. Tribute money, money paid as a tribute or tax. — Tribute pitch. (Mining) See under Tributer. [Eng.]

Syn. — See Subsidy.

TRIBUTE Trib"ute, v. i. [imp. & p. p. Tributed; p. pr. & vb. n. Tributing.]

Defn: To pay as tribute. [R.] Whitlock (1654).

TRIBUTER Trib"u*ter, n. (Mining)

Defn: One who works for a certain portion of the ore, or its value. [Eng.]

Note: Tributers generally work in gangs, and have a limited portion of a lode set them, called a tribute pitch, beyond which they are not permitted to work, and for which they receive a certain portion of the ore, or so much per pound, as agreed upon, of the value of what they raise. Weale.

TRICA Tri"ca, n.; pl. Tricæ. Etym: [NL.] (Bot.)

Defn: An apothecium in certain lichens, having a spherical surface marked with spiral or concentric ridges and furrows.

TRICARBALLYLIC Tri*car`bal*lyl"ic, a. Etym: [Pref. tri- + carboxyl + allyl + -ic.] (Chem.)

Defn: Of, pertaining to, or designating, a complex tribasic organic acid, C3H5.(CO2H)3 occurring naturally in unripe beet roots, and produced artificially from glycerin as a white crystalline substance.

TRICARBIMIDE Tri*car"bi*mide, n. Etym: [Pref. tri- + carbimide.] (Chem.)

Defn: See under Cyanuric.

TRICE Trice, v. t. Etym: [OE. trisen; of Scand. or Low German origin; cf. Sw. trissa a sheave, pulley, triss a spritsail brace, Dan. tridse a pulley, tridse to haul by means of a pulley, to trice, LG. trisse a pulley, D. trijsen to hoist.] [Written also trise.]

1. To pull; to haul; to drag; to pull away. [Obs.] Out of his seat I will him trice. Chaucer.

2. (Naut.)

Defn: To haul and tie up by means of a rope.

TRICE Trice, n. Etym: [Sp. tris the noise made by the breaking of glass, an instant, en un tris in an instant; probably of imitative origin.]

Defn: A very short time; an instant; a moment; — now used only in the phrase in a trice. "With a trice." Turbervile. " On a trice." Shak. A man shall make his fortune in a trice. Young.

TRICENNARIOUS Tri`cen*na"ri*ous, a.

Defn: Of or pertaining to thirty years; tricennial. [R.]

TRICENNIAL Tri*cen"ni*al, a. Etym: [L. tricennium thirty years; triginta thirty + annus year: cf. L. tricennalis.]

Defn: Of or pertaining to thirty years; consisting of thirty years; occurring once in every thirty years.

TRICENTENARY Tri*cen"te*na*ry, a. Etym: [Pref. tri- + centenary.]

Defn: Including, or relating to, the interval of three hundred years; tercentenary. — n.

Defn: A period of three centuries, or three hundred years, also, the three-hundredth anniversary of any event; a tercentenary.

TRICEPS Tri"ceps, n. Etym: [NL., fr. L. triceps, having three beads; tres, tria, three + caput head: cf. F. triceps. See Three, and Chief.] (Anat.)

Defn: A muscle having three heads; specif., the great extensor of the forearm, arising by three heads and inserted into the olecranon at the elbow.

TRICHIASIS Tri*chi"a*sis, n. Etym: [NL., fr. Gr. (Med.)

Defn: A disease of the eye, in which the eyelashes, being turned in upon the eyeball, produce constant irritation by the motion of the lids.

TRICHINA Tri*chi"na (-na), n.; pl. Trichinæ. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A small, slender nematoid worm (Trichina spiralis) which, in the larval state, is parasitic, often in immense numbers, in the voluntary muscles of man, the hog, and many other animals. When insufficiently cooked meat containing the larvæ is swallowed by man, they are liberated and rapidly become adult, pair, and the ovoviviparous females produce in a short time large numbers of young which find their way into the muscles, either directly, or indirectly by means of the blood. Their presence in the muscles and the intestines in large numbers produces trichinosis.

TRICHINIASIS Trich`i*ni"a*sis, n. Etym: [NL.] (Med.)

Defn: Trichinosis.

TRICHINIZE Trich"i*nize, v. t.

Defn: To render trichinous; to affect with trichinæ; — chiefly used in the past participle; as, trichinized pork.

TRICHINOSCOPE Tri*chi"no*scope, n. Etym: [Trichina + -scope.]

Defn: An apparatus for the detection of trichinæ in the flesh of animals, as of swine.

TRICHINOSIS Trich`i*no"sis, n. Etym: [NL. See Trichina.] (Med.)

Defn: The disease produced by the presence of trichinæ in the muscles and intestinal track. It is marked by fever, muscular pains, and symptoms resembling those of typhoid fever, and is frequently fatal.

TRICHINOUS Trich"i*nous, a.

Defn: Of or pertaining to trichinæ or trichinosis; affected with, or containing, trichinæ; as, trichinous meat.

TRICHITE Trich"ite, n. Etym: [Gr.

1. (Min.)

Defn: A kind of crystallite resembling a bunch of hairs, common in obsidian. See Illust. of Crystallite.

2. (Zoöl.)

Defn: A delicate, hairlike siliceous spicule, found in certain sponges. Trichite sheaf (Zoöl.), one of the small sheaflike fascicles of slender setæ characteristic of certain sponges. See Illust. under Spicule.

TRICHIURIFORM Trich`i*u"ri*form, a. (Zoöl.)

Defn: Like or pertaining to the genus Trichiurus or family Trichiuridæ, comprising the scabbard fishes and hairtails.

TRICHIUROID Trich`i*u"roid, a. Etym: [Trichiurus + -oid.] (Zoöl.)

Defn: Of, like, or pertaining to, Trichiurus.

TRICHIURUS Trich`i*u"rus, n. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A genus of fishes comprising the hairtails. See Hairtail.

TRICHLORIDE Tri*chlo"ride, n. Etym: [Pref. tri- + chloride.] (Chem.)

Defn: A chloride having three atoms of chlorine in the molecule.

TRICHOBRANCHIA Trich`o*bran"chi*a, n. Etym: [NL., fr. Gr. branchia.] (Zoöl.)

Defn: The gill of a crustacean in which the branchial filaments are slender and cylindrical, as in the crawfishes.

TRICHOCYST Trich"o*cyst, n. Etym: [Gr. (Zoöl.)

Defn: A lasso cell.

TRICHOGYNE Trich"o*gyne, n. Etym: [F., fr. Gr. (Bot.)

Defn: The slender, hairlike cell which receives the fertilizing particles, or antherozoids, in red seaweeds. — Trich`o*gyn"ic, a.

TRICHOMANES Tri*chom"a*nes, n. Etym: [L., a kind of plant, from Gr. (Bot.)

Defn: Any fern of the genus Trichomanes. The fronds are very delicate and often translucent, and the sporangia are borne on threadlike receptacles rising from the middle of cup-shaped marginal involucres. Several species are common in conservatories; two are native in the United States.

TRICHOMATOSE Tri*chom"a*tose`, a. Etym: [Gr. (Med.)

Defn: Affected with a disease which causes agglutination and matting together; — said of the hair when affected with plica. See Plica, 1.

TRICHOME Trich"ome, n. Etym: [See Trichomatose.] (Bot.)

Defn: A hair on the surface of leaf or stem, or any modification of a hair, as a minute scale, or star, or gland. The sporangia of ferns are believed to be of the nature of trichomes. — Tri*chom"a*tous, a.

TRICHOPHORE Trich"o*phore, n. Etym: [Gr.

1. (Bot.)

Defn: The special cell in red algæ which produces or bears a trichogyne. See Illust. of Trichogyne.

2. (Zoöl.)

Defn: One of the saclike organs from which the setæ of annelids arise. — Trich`o*phor"ic, a.

TRICHOPTER Tri*chop"ter, n. (Zoöl.)

Defn: One of the Trichoptera.

TRICHOPTERA Tri*chop"te*ra, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A suborder of Neuroptera usually having the wings covered with minute hairs. It comprises the caddice flies, and is considered by some to be a distinct order.

TRICHOPTERAN Tri*chop"ter*an, (Zoöl.)

Defn: One of the Trichoptera.

TRICHOPTEROUS Tri*chop"ter*ous, a. (Zoöl.)

Defn: Of, pertaining to, or characterizing, the Trichoptera.

TRICHORD Tri"chord, n. Etym: [Gr. Tri-) + , or string.] (Mus.)

Defn: An instrument, as a lyre or harp, having three strings.

TRICHOSCOLICES Trich`o*scol"i*ces, n. pl. Etym: [NL., from Gr. tri`x, tricho`s, hair + skw`lhx a worm.] (Zoöl.)

Defn: An extensive group of wormlike animals characterized by being more or less covered with cilia.

TRICHOTOMOUS Tri*chot"o*mous, a. Etym: [See Trichotomy.]

Defn: Divided into three parts, or into threes; three-forked; as, a trichotomous stem. Martyn.

TRICHOTOMY Tri*chot"o*my, n. Etym: [Gr. tri`cha threefold, in three parts + te`mnein to cut or divide: cf. F. trichotomie.]

Defn: Division into three parts.

TRICHROIC Tri*chro"ic, a.

Defn: Exhibiting trichroism; pleochroic; pleochroism.

TRICHROISM Tri"chro*ism, n. Etym: [Pref. tri- + Gr. trichroïsme.] (Min.)

Defn: The quality possessed by some crystals of presenting different colors in three different directions.

TRICHROMATIC Tri`chro*mat"ic, a. Etym: [Pref. tri- + chromatic.] (Zoöl.)

Defn: Having or existing in three different phases of color; having three distinct color varieties; — said of certain birds and insects.

TRICHROMATISM Tri*chro"ma*tism, n. (Zoöl.)

Defn: The quality, state, or phenomenon of being trichromatic.

TRICHROMIC Tri*chro"mic, a. Etym: [Pref. tri- + Gr. (Opt.)

Defn: If, pertaining to, or consisting of, three colors or color sensations.

TRICHROMIC Tri*chro"mic, a. Etym: [Pref. tri- + chromic.] (Chem.)

Defn: Containing three atoms of chromium.

TRICIPITAL Tri*cip"i*tal, a. Etym: [See Triceps.] (Anat.)

Defn: Having three heads, or three origins; as, a tricipital muscle.

TRICK Trick, n. Etym: [D. trek a pull, or drawing, a trick, trekken to draw; akin to LG. trekken, MHG. trecken, trechen, Dan. trække, and OFries. trekka. Cf. Track, Trachery, Trig, a., Trigger.]

1. An artifice or stratagem; a cunning contrivance; a sly procedure, usually with a dishonest intent; as, a trick in trade. tricks of the trade mean simply specialized knowledge, in a good or neutral sense. He comes to me for counsel, and I show him a trick. South. I know a trick worth two of that. Shak.

2. A sly, dexterous, or ingenious procedure fitted to puzzle or amuse; as, a bear's tricks; a juggler's tricks.

3. Mischievous or annoying behavior; a prank; as, the tricks of boys. Prior.

4. A particular habit or manner; a peculiarity; a trait; as, a trick of drumming with the fingers; a trick of frowning. The trick of that voice I do well remember. Shak. He hath a trick of Coeur de Lion's face. Shak.

5. A knot, braid, or plait of hair. [Obs.] B. Jonson.

6. (Card Playing)

Defn: The whole number of cards played in one round, and consisting of as many cards as there are players. On one nice trick depends the general fate. Pope.

7. (Naut.)

Defn: A turn; specifically, the spell of a sailor at the helm, — usually two hours.

8. A toy; a trifle; a plaything. [Obs.] Shak.

Syn. — Stratagem; wile; fraud; cheat; juggle; finesse; sleight; deception; imposture; delusion; imposition.

TRICK Trick, v. t. [imp. & p. p. Tricked; p. pr. & vb. n. Tricking.]

1. To deceive by cunning or artifice; to impose on; to defraud; to cheat; as, to trick another in the sale of a horse.

2. To dress; to decorate; to set off; to adorn fantastically; — often followed by up, off, or out. " Trick her off in air." Pope. People lavish it profusely in tricking up their children in fine clothes, and yet starve their minds. Locke. They are simple, but majestic, records of the feelings of the poet; as little tricked out for the public eye as his diary would have been. Macaulay.

3. To draw in outline, as with a pen; to delineate or distinguish without color, as arms, etc., in heraldry. They forget that they are in the statutes: . . . there they are tricked, they and their pedigrees. B. Jonson.

TRICKER Trick"er, n.

Defn: One who tricks; a trickster.

TRICKER Trick"er, n.

Defn: A trigger. [Obs. or Prov. Eng.] Boyle.

TRICKERY Trick"er*y, n.

Defn: The art of dressing up; artifice; stratagem; fraud; imposture.

TRICKINESS Trick"i*ness, n.

Defn: The quality of being tricky.

TRICKING Trick"ing, a.

Defn: Given to tricks; tricky. Sir W. Scott.

TRICKING Trick"ing, n.

Defn: Dress; ornament. Shak.

TRICKISH Trick"ish, a.

Defn: Given to tricks; artful in making bargains; given to deception and cheating; knavish. — Trick"ish*ly, adv. — Trick"ish*ness, n.

TRICKLE Tric"kle, v. i. [imp. & p. p. Trickled; p. pr. & vb. n. Trickling.] Etym: [OE. triklen, probably for striklen, freq. of striken to flow, AS. str. See Strike, v. t.]

Defn: To flow in a small, gentle stream; to run in drops. His salt tears trickled down as rain. Chaucer. Fast beside there trickled softly down A gentle stream. Spenser.

TRICKMENT Trick"ment, n.

Defn: Decoration. [Obs.] " No trickments but my tears." Beau. & Fl.

TRICKSINESS Trick"si*ness, n.

Defn: The quality or state of being tricksy; trickiness. G. Eliot.

TRICKSTER Trick"ster, n.

Defn: One who tricks; a deceiver; a tricker; a cheat.

TRICKSY Trick"sy, a. Etym: [From Trick.]

Defn: Exhibiting artfulness; trickish. "My tricksy spirit!" Shak. he tricksy policy which in the seventeenth century passed for state wisdom. Coleridge.

TRICKTRACK Trick"track`, n. Etym: [F. trictrac. Cf. Ticktack backgammon.]

Defn: An old game resembling backgammon.

TRICKY Trick"y, a.

Defn: Given to tricks; practicing deception; trickish; knavish.

TRICLINATE Tric"li*nate, a. (Min.)

Defn: Triclinic.

TRICLINIARY Tri*clin"i*a*ry, a. Etym: [L. tricliniaris. See Triclinium.]

Defn: Of or pertaining to a triclinium, or to the ancient mode of reclining at table.

TRICLINIC Tri*clin"ic, a. Etym: [Pref. tri- + Gr. (Crystallog.)

Defn: Having, or characterized by, three unequal axes intersecting at oblique angles. See the Note under crystallization.

TRICLINIUM Tri*clin"i*um, n.; pl. Triclinia. Etym: [L., from Gr. Tri-) + a couch.] (Rom. Antiq.) (a) A couch for reclining at meals, extending round three sides of a table, and usually in three parts. (b) A dining room furnished with such a triple couch.

TRICOCCOUS Tri*coc"cous, a. Etym: [Gr. tri`kokkos with three grains or berries; Tri-) + ko`kkos grain, seed.] (Bot.)

Defn: Having three cocci, or roundish carpels. Gray.

TRICOLOR Tri"col`or, n. Etym: [F. tricolore, drapeau tricolore a tricolored flag, fr. tricolore three-colored; tri (see Tri-) + L. color color.] [Written also tricolour.]

1. The national French banner, of three colors, blue, white, and red, adopted at the first revolution.

2. Hence, any three-colored flag.

TRICOLORED Tri"col`ored, a.

Defn: Having three colors.

TRICORNIGEROUS Tri`cor*nig"er*ous, a. Etym: [L. tricorniger; tricornis three-horned (see Tri-, and Horn) + -gerere to bear.]

Defn: Having three horns.

TRICORPORAL; TRICORPORATE Tri*cor"po*ral, Tri*cor"po*rate, a. Etym: [L. tricorpor; tri- (see Tri-) + corpus, -oris, body.] (Her.)

Defn: Represented with three bodies conjoined to one head, as a lion.

TRICOSTATE Tri*cos"tate, a. Etym: [Pref. tri- + costate.] (Bot.)

Defn: Three-ribbed; having three ribs from the base.

TRICOT Tri`cot", n. Etym: [F.]

Defn: A fabric of woolen, silk, or cotton knitted, or women to resemble knitted work.

TRICROTIC Tri*crot"ic, a. Etym: [Pref. tri- + Gr. (Physiol.)

Defn: Of or pertaining to tricrotism; characterized by tricrotism.

TRICROTISM Tri"cro*tism, n. (Physiol.)

Defn: That condition of the arterial pulse in which there is a triple beat. The pulse curve obtained in the sphygmographic tracing characteristic of tricrotism shows two secondary crests in addition to the primary.

TRICROTOUS Tri"cro*tous, a. (Physiol.)

Defn: Tricrotic.

TRICURVATE Tri*cur"vate, a. Etym: [Pref. tri- + curvate.] (Zoöl.)

Defn: Curved in three directions; as, a tricurvate spicule (see Illust. of Spicule).

TRICUSPID Tri*cus"pid, a. Etym: [L. tricuspis, -idis; tri- (see Tri-) + cuspis a point: cf. F. tricuspide.]

1. Having three cusps, or points; tricuspidate; as, a tricuspid molar.

2. (Anat.)

Defn: Of or pertaining to the tricuspid valves; as, tricuspid obstruction. Tricuspid valve (Anat.), the valve, consisting of three triangular membranous flaps, at the opening of the right auricle into the right ventricle in the heart of most mammals; — sometimes called the tricuspid valves, each flap being regarded as a valve.

TRICUSPIDATE Tricus"pid*ate, a.

Defn: Three-pointed; ending in three points; as, a tricuspidate leaf.

TRICYCLE Tri"cy*cle, n. Etym: [Pref. tri- + cycle as inbicycle.]

Defn: A three-wheeled velocipede. See Illust. under Velocipede. Cf. Bicycle.

TRIDACNA Tri*dac"na, n. Etym: [L., pl., a kind of oysters, fr. Gr. (Zoöl.)

Defn: A genus of very large marine bivalve shells found on the coral reefs of the Indian and Pacific Oceans. One species (T. gigas) often weighs four or five hundred pounds, and is sometimes used for baptismal fonts. Called also paw shell, and fountain shell.

TRIDACTYL; TRIDACTYLE Tri*dac"tyl Tri*dac"tyle, a. Etym: [Gr. Tri-) + tridactyle.] (Biol.)

Defn: Having three fingers or toes, or composed of three movable parts attached to a common base.

TRIDACTYLOUS Tri*dac"tyl*ous, a. (Biol.)

Defn: Tridactyl.

TRIDDLER Trid"dler, n. (Zoöl.)

Defn: The jacksnipe. [Local, U.S.]

TRIDE Tride, a. Etym: [Cf. F. tride lively, quick.]

Defn: Short and ready; fleet; as, a tride pace; — a term used by sportsmen. Bailey.

TRIDECANE Tri*dec"ane, n. Etym: [Pref. tri- + Gr. (Chem.)

Defn: A hydrocarbon, C13H28, of the methane series, which is a probable ingredient both of crude petroleum and of kerosene, and is produced artificially as a light colorless liquid.

TRIDECATOIC Tri`dec*a*to"ic, a. Etym: [Pref. tri- + Gr. de`katos tenth.] (Chem.)

Defn: Of, pertaining to, or designating, that acid of the fatty acids heterologous with tridecane. It is a white crystalline substance.

TRIDECATYLENE Tri`de*cat"y*lene, n. Etym: [Pref. tri-+ Gr. ylene.] (Chem.)

Defn: A hydrocarbon, C13H26, of the ethylene series, corresponding to tridecane, and obtained from Burmah petroleum as a light colorless liquid; — called also tridecylene, and tridecene.

TRIDENT Tri"dent, n. Etym: [L. tridens, -entis; tri- (see Tri-) + dens tooth: cf. F. trident. See Tooth.]

1. (Class Myth.)

Defn: A kind of scepter or spear with three prongs, — the common attribute of Neptune.

2. (Rom. Antiq.)

Defn: A three-pronged spear or goad, used for urging horses; also, the weapon used by one class of gladiators.

3. A three-pronged fish spear.

4. (Geom.)

Defn: A curve of third order, having three infinite branches in the direction and a fourth infinite branch in the opposite direction. Trident bat (Zoöl.), an Asiatic rhinolophid bat (Triænops Persicus), having the nose membrane in the shape of a trident.

TRIDENT Tri"dent, a. Etym: [L. tridens.]

Defn: Having three teeth or prongs; tridentate.

TRIDENTATE; TRIDENTATED Tri*den"tate, Tri*den"ta*ted, a. Etym: [NL. tridentatus. See Trident.]

Defn: Having three teeth; three-toothed. Lee.

TRIDENTED Tri"dent*ed, a.

Defn: Having three prongs; trident; tridentate; as, a tridented mace. [R.] Quarles.

TRIDENTIFEROUS Tri`dent*if"er*ous, a. Etym: [L. tridentifer; tridens trident + ferre to bear.]

Defn: Bearing a trident.

TRIDENTINE Tri*den"tine, a. Etym: [From L. Tridentum Trent.]

Defn: Of or pertaining to Trent, or the general church council held in that city.

TRIDIAPASON Tri*di`a*pa"son, n. Etym: [Pref. tri- + diaposon.] (Anc. Mus.)

Defn: A triple octave, or twenty-second. Busby.

TRIDIMENSIONAL Tri`di*men"sion*al, a. Etym: [Pref. tri- + dimensional.] (Chem.)

Defn: Having three dimensions; extended in three different directions.

TRIDING Tri"ding, n.

Defn: A riding. See Trithing.

TRIDUAN Trid"u*an, a. Etym: [L. triduanus, fr. triduum space of three days; tri- + dies day.]

Defn: Lasting three lays; also, happening every third day. [R.] Blount.

TRIDYMITE Trid"y*mite, n. Etym: [Gr. (Min.)

Defn: Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.

TRIED Tried,

Defn: imp. & p. p. of Try. Also adj.

Defn: Proved; tested; faithful; trustworthy; as, a tried friend.

TRIEDRAL Tri*e"dral, a.

Defn: See Trihedral.

TRIENNIAL Tri*en"ni*al, a. Etym: [L. triennium the space of three years; tri- (see Tri-) + annus year. See Annual.]

1. Continuing three years; as, triennial parliaments; a triennial reign. Howell.

2. Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation. T. Warton.

TRIENNIAL Tri*en"ni*al, n.

Defn: Something which takes place or appears once in three years.

TRIENNIALLY Tri*en"ni*al*ly, adv.

Defn: Once in three years.

TRIENS Tri"ens, n. Etym: [L., from tres, tria, three.] (Rom. Antiq.)

Defn: A Roman copper coin, equal to one third of the as. See 3d As, 2.

TRIER Tri"er, n. Etym: [From Try.]

1. One who tries; one who makes experiments; one who examines anything by a test or standard. Boyle.

2. One who tries judicially.

3. (Law)

Defn: A person appointed according to law to try challenges of jurors; a trior. Burrill.

4. That which tries or approves; a test. Shak.

TRIERARCH Tri"er*arch, n. Etym: [L. trierarchus, Gr. (Gr. Antiq.) (a) The commander of a trireme. (b) At Athens, one who (singly, or jointly with other citizens) had to fit out a trireme for the public service.

TRIERARCHY Tri"er*arch`y, n.; pl. Trierarchises. Etym: [ Gr.

Defn: The office duty of a trierarch.

TRIETERICAL Tri`e*ter"ic*al, a. Etym: [L. trietericus, Gr. Tri-.) +

Defn: Kept or occurring once in three years; triennial. [R.] J. Gregory.

TRIETERICS Tri`e*ter"ics, n. pl. Etym: [L. trieterica, pl., fr. Gr. (Class. Antiq.)

Defn: Festival games celebrated once in three years. [R.] May.

TRIETHYLAMINE Tri*eth`yl*am"ine, n. Etym: [Pref. tri- + ethylamine.] (Chem.)

Defn: A tertiary amine analogous to trimethylamine.

TRIFACIAL Tri*fa"cial, a. Etym: [Pref. tri- + facial.] (Anat.)

Defn: See Trigeminal.

TRIFALLOW Tri"fal`low, v. t. [imp. & p. p. Trifallowed; p. pr. & vb. n. Trifallowing.] Etym: [Pref. tri- + fallow. Cf. Thryfallow.]

Defn: To plow the third time before sowing, as land. Mortimer.

TRIFARIOUS Tri*fa"ri*ous, a. Etym: [L. trifarius of three sorts or ways, threefold; cf. Gr. Bifarious.] (Bot.)

Defn: Facing three ways; arranged in three vertical ranks, as the leaves of veratrum.

TRIFASCIATED Tri*fas"ci*a`ted, a. Etym: [Pref. tri- + fasciated.]

Defn: Having, or surrounded by, three fasciæ, or bands.

TRIFID Tri"fid, a. Etym: [L. trifidus; tri- (see Tri-) + the root of findere to split: cf. F. trifide.]

Defn: Cleft to the middle, or slightly beyond the middle, into three parts; three-cleft.

TRIFISTULARY Tri*fis"tu*la*ry, a. Etym: [Pref. tri- + fistula, fistular.]

Defn: Having three pipes. Sir T. Browne.

TRIFLE Tri"fle, n. Etym: [OE. trifle, trufle, OF. trufle mockery, raillery, trifle, probably the same word as F. truffe truffle, the word being applied to any small or worthless object. See Truffle.]

1. A thing of very little value or importance; a paltry, or trivial, affair. With such poor trifles playing. Drayton. Trifles light as air Are to the jealous confirmation strong As proofs of holy writ. Shak. Small sands the mountain, moments make year, And frifles life. Young.

2. A dish composed of sweetmeats, fruits, cake, wine, etc., with syllabub poured over it.

TRIFLE Tri"fle, v. i. [imp. & p. p. Trifled; p. pr. & vb. n. Trifling.] Etym: [OE. trifelen, truflen. See Trifle, n.]

Defn: To act or talk without seriousness, gravity, weight, or dignity; to act or talk with levity; to indulge in light or trivial amusements. They trifle, and they beat the air about nothing which toucheth us. Hooker. To trifle with, to play the fool with; to treat without respect or seriousness; to mock; as, to trifle with one's feelings, or with sacred things.

TRIFLE Tri"fle, v. t.

1. To make of no importance; to treat as a trifle. [Obs.] Shak.

2. To spend in vanity; to fritter away; to waste; as, to trifle away money. "We trifle time." Shak.

TRIFLER Tri"fler, n.

Defn: One who trifles. Waterland.

TRIFLING Tri"fling, a.

Defn: Being of small value or importance; trivial; paltry; as, a trifling debt; a trifling affair. — Tri"fling*ly, adv. — Tri"fling*ness, n.

TRIFLORAL; TRIFLOROUS Tri*flo"ral, Tri*flo"rous, a. Etym: [Pref. tri- + L. flos, floris, flower.] (Bot.)

Defn: Three-flowered; having or bearing three flowers; as, a triflorous peduncle.

TRIFLUCTUATION Tri*fluc`tu*a"tion, n. Etym: [Pref. tri- + fluctuation.]

Defn: A concurrence of three waves. [Obs.] "A trifluctuation of evils." Sir T. Browne.

TRIFOLIATE; TRIFOLIATED Tri*fo"li*ate, Tri*fo"li*a`ted, a. Etym: [Tri- + foliate. Cf. Trefoil.] (Bot.)

Defn: Having three leaves or leaflets, as clover. See Illust. of Shamrock.

TRIFOLIOLATE Tri*fo"li*o*late, a. Etym: [Pref. tri- + foliolate.]

Defn: (Bot.) Having three leaflets.

TRIFOLIUM Tri*fo"li*um, n. Etym: [L., clover.] (Bot.)

Defn: A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover.

TRIFOLY Tri"fo*ly, n. Etym: [L. trifolium. See Trifoliate, Trefoil.] (Bot.)

Defn: Sweet trefoil. [Obs.] She was crowned with a chaplet of trifoly. B. Jonson.

TRIFORIUM Tri*fo"ri*um, n. Etym: [LL., fr. L. tri- (see Tri-) + foris, pl. fores, a door.] (Arch.)

Defn: The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.

TRIFORM Tri"form, a. Etym: [L. triformis; tri- (see Tri-) + forma form.]

Defn: Having a triple form or character. "This triform antagonism." I. Taylor. Goddess Triform, I own thy triple spell. Lowell.

TRIFORMITY Tri*form"i*ty, n. Etym: [L. triformitas.]

Defn: The state of being triform, or of having a threefold shape.

TRIFURCATE; TRIFURCATED Tri*fur"cate, Tri*fur"ca*ted, a. Etym: [L. trifurcus; tri- (see Tri-) + furca fork.]

Defn: Having three branches or forks; trichotomous.

TRIG Trig, v. t. Etym: [Cf. Dan. trykke to press, Sw. trycka.]

Defn: To fill; to stuff; to cram. [Obs.] Dr. H. More.

TRIG Trig, a. Etym: [Formerly written trick, akin to trick to dress.]

Defn: Full; also, trim; neat. [Prov. Eng. & Scot.] To sit on a horse square and trig. Brit. Quart. Rev.

TRIG Trig, v. t. Etym: [See Trigger.]

Defn: To stop, as a wheel, by placing something under it; to scotch; to skid.

TRIG Trig, n. Etym: [See Trigger.]

Defn: A stone, block of wood, or anything else, placed under a wheel or barrel to prevent motion; a scotch; a skid. [Eng.] Wright.

TRIGAMIST Trig"a*mist, n. Etym: [See Trigamy.]

Defn: One who has been married three times; also, one who has three husbands or three wives at the same time.

TRIGAMOUS Trig"a*mous, a. Etym: [L. trigamus a thrice-married man, Gr. Tri-) + trigame.] (Bot.)

Defn: Having three sorts of flowers in the same head, — male, female, and hermaphrodite, or perfect, flowers.

TRIGAMY Trig"a*my, n. Etym: [L. trigamia,Gr. trigamie. See Trigamous.]

Defn: The act of marrying, or the state of being married, three times; also, the offense of having three husbands or three wives at the same time.

TRIGASTRIC Tri*gas"tric, a. Etym: [Pref. tri- + Gr. (Anat.)

Defn: Having three bellies; — said of a muscle. Dunglison.

TRIGEMINAL Tri*gem"i*nal, a. Etym: [See Trigeminous.] (Anat.)

Defn: Of, pertaining to, or designating, the fifth pair of cranial nerves, which divide on each side of the head into three main branches distributed to the orbits, jaws, and parts of the mouth; trifacial.

TRIGEMINOUS Tri*gem"i*nous, a. Etym: [L. trigeminus born three together; tri- (see Tri-) + geminus twin. Cf. Tergeminous.]

Defn: Born three together; being one of three born at the same birth; also, threefold. E. Phillip

TRIGENIC Tri*gen"ic, a. Etym: [Pref. tri- + gen- + -ic. So named in reference to its composition, it being supposed to contain the radicals of three molecules of cyanic acid.] (Chem.)

Defn: Of, pertaining to, or designating, an acid, C4H7N3O2, obtained, by the action of the vapor of cyanic acid on cold aldehyde, as a white crystalline substance having a slightly acid taste and faint smell; — called also ethidene- or ethylidene-biuret.

TRIGER PROCESS Tri`ger proc"ess. [After M. Triger, French engineer.] (Engin. & Mining)

Defn: A method of sinking through water-bearing ground, in which the shaft is lined with tubbing and provided with an air lock, work being proceeded with under air pressure.

TRIGESIMO-SECUNDO Tri*ges"i*mo-se*cun"do, a. Etym: [L. in trigesimo-secundo in the thirty-second.]

Defn: Having thirty-two leaves to a sheet; as, a trigesimo-secundo form, book, leaf, size, etc.

TRIGESIMO-SECUNDO Tri*ges"i*mo-se*cun"do, n.

Defn: A book composed of sheets so folded that each one makes thirty- two leaves; hence, indicating, more or less definitely, a size of book; — usually written 32mo, or 32º, and called thirty-twomo.

TRIGGER Trig"ger, n. Etym: [For older tricker, from D. trekker, fr. trekken to draw, pull. See Trick, n.]

1. A catch to hold the wheel of a carriage on a declivity.

2. (Mech.)

Defn: A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece. Trigger fish (Zoöl.), a large plectognath fish (Balistes Carolinensis or B. capriscus) common on the southern coast of the United States, and valued as a food fish in some localities. Its rough skin is used for scouring and polishing in the place of sandpaper. Called also leather jacket, and turbot.

TRIGINTAL Tri*gin`tal, n. Etym: [LL. trigintate, fr. L. triginta thirty. See Trental.] (R. C. Ch.)

Defn: A trental.

TRIGLYCERIDE Tri*glyc"er*ide, n. Etym: [Pref. tri- + glyceride.] (Chem.)

Defn: A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals.

TRIGLYPH Tri"glyph, n. Etym: [L. triglyphus, Gr. Tri-) + triglyphe.] (Arch.)

Defn: An ornament in the frieze of the Doric order, repeated at equal intervals. Each triglyph consists of a rectangular tablet, slightly projecting, and divided nearly to the top by two parallel and perpendicular gutters, or channels, called glyphs, into three parts, or spaces, called femora. A half channel, or glyph, is also cut upon each of the perpendicular edges of the tablet. See Illust. of Entablature.

TRIGLYPHIC; TRIGLYPHICAL Tri*glyph"ic, Tri*glyph"ic*al, a.

1. Consisting of, or pertaining to, triglyphs.

2. Containing three sets of characters or sculptures.

TRIGNESS Trig"ness, n. Etym: [See Trig trim, neat.]

Defn: The quality or state of being trig; smartness; neatness. Their spars had no man-of-war trigness. Kane.

TRIGON Tri"gon, n. Etym: [L. trigonum, Gr. Tri-) + trigone.]

1. A figure having three angles; a triangle.

2. (Astrol.) (a) A division consisting of three signs. (b) Trine, an aspect of two planets distant 120 degrees from each other. Hutton.

3. (Gr. & Rom. Antiq.) (a) A kind of triangular lyre or harp. (b) A kind of game at ball played by three persons standing at the angular points of a triangle.

TRIGON; TRIGONID Tri"gon, n. (Zoöl.)

Defn: The cutting region of the crown of an upper molar, usually the anterior part. That of a lower molar is the Tri"go*nid.

TRIGONAL Trig"o*nal, a.

Defn: Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.

TRIGONE Tri`gone", n. Etym: [F., literally, a trigon.] (Anat.)

Defn: A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra.

TRIGONIA Tri*go"ni*a, n. Etym: [NL. See Trigon. So called in allusion to the triangular shape of some species.] (Zoöl.)

Defn: A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia.

TRIGONOCEROUS Trig`o*noc"er*ous, a. Etym: [Gr. (Zoöl.)

Defn: Having horns with three angles, like those of some species of goats.

TRIGONODONT Trig"o*no*dont`, a. [See Trigon; Odonto.]

Defn: See Trituberculy.

TRIGONOMETRIC; TRIGONOMETRICAL Trig`o*no*met"ric, Trig`o*no*met"ric*al,Etym: [Cf. F. trigonométrique.]

Defn: Of or pertaining to trigonometry; performed by the rules of trigonometry. —Trig`o*no*met"ric*al*ly, adv. Trigonometrical curve, a curve one of whose coördinates is a trigonometric function of the other. — Trigonometrical function. See under Function. — Trigonometrical lines, lines which are employed in solving the different cases of plane and spherical trigonometry, as sines, tangents, secants, and the like. These lines, or the lengths of them, are trigonometrical functions of the arcs and angles to which they belong. — Trigonometrical survey. See under Survey.

TRIGONOMETRY Trig`o*nom"e*try, n.; pl. -tries. Etym: [Gr. -metry: cf. F. trigonométrie. See Trigon.]

1. That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.

2. A treatise in this science. Analytical trigonometry, that branch of trigonometry which treats of the relations and properties of the trigonometrical functions. — Plane trigonometry, and Spherical trigonometry, those branches of trigonometry in which its principles are applied to plane triangles and spherical triangles respectively.

TRIGONOUS Trig"o*nous, a. Etym: [L. trigonus, Gr. Trigon.]

Defn: Same as Trigonal.

TRIGRAM Tri"gram, n. Etym: [Pref. tri- + -gram.]

Defn: Same as Trigraph.

TRIGRAMMATIC Tri`gram*mat"ic, a. Etym: [Gr.

Defn: Containing three letters or characters, or three sets of letters or characters.

TRIGRAMMIC Tri*gram"mic, a. Etym: [Gr. Trigrammatic.]

Defn: Same as Trigrammatic.

TRIGRAPH Tri"graph, n. Etym: [Pref. tri- + -graph.]

Defn: Three letters united in pronunciation so as to have but one sound, or to form but one syllable, as -ieu in adieu; a triphthong.

TRIGYN Tri"gyn, n. (Bot.)

Defn: Any one of the Trigynia.

TRIGYNIA Tri*gyn"i*a, n. pl. Etym: [NL., Gr. Tri-) + (Bot.)

Defn: A Linnæan order of plants having three pistils or styles.

TRIGYNIAN; TRIGYNOUS Tri*gyn"i*an, Trig"y*nous, a. (Bot.)

Defn: Having three pistils or styles; of or pertaining to the Trigynia.

TRIHEDRAL Tri*he"dral, a. Etym: [See Trihedron.] (Geom.)

Defn: Having three sides or faces; thus, a trihedral angle is a solid angle bounded by three plane angles. [Written also triedral.]

TRIHEDRON Tri*he"dron, n. Etym: [Pref. tri- + Gr. (Geom.)

Defn: A figure having three sides.

TRIHORAL Tri*ho"ral, a. Etym: [Pref. tri- + horal.]

Defn: Occurring once in every three hours.

TRIHYBRID Tri*hy"brid, n. (Biol.)

Defn: A hybrid whose parents differ by three pairs of contrasting Mendelian characters.

TRIJUGATE Trij"u*gate, a. Etym: [See Trijugous.] (Bot.)

Defn: In three pairs; as, a trijugate leaf, or a pinnate leaf with three pairs of leaflets.

TRIJUGOUS Trij"u*gous, a. Etym: [L. trijugus threefold; tri- + jugum a yoke.] (Bot.)

Defn: Same as Trijugate.

TRIKOSANE Tri"ko*sane, n. Etym: [Pref. tri- + Gr. (Chem.)

Defn: A hydrocarbon, C23H48, of the methane series, resembling paraffin; — so called because it has twenty-three atoms of carbon in the molecule.

TRILATERAL Tri*lat"er*al, a.Etym: [L. trilaterus; tri- (see Tri-) + latus, lateris, side: cf. F. trilatéral. See Lateral.] (Geom.)

Defn: Having three sides; being three-sided; as, a trilateral triangle. — Tri*lat"er*al*ly, adv. — Tri*lat"er*al*ness, n.

TRILEMMA Tri*lem"ma, n. Etym: [NL., fr. Gr. Tri-) + any thing received, in logic, an assumption. Cf. Dilemma.]

1. (Logic)

Defn: A syllogism with three conditional propositions, the major premises of which are disjunctively affirmed in the minor. See Dilemma.

2. A state of things in which it is difficult to determine which one of three courses to pursue.

TRILINEAR Tri*lin"e*ar, a. (Math.)

Defn: Of, pertaining to, or included by, three lines; as, trilinear coördinates.

TRILINGUAL Tri*lin"gual, a. Etym: [L. trilinguis; tri- (see Tri-) + lingua tongue, language. See Lingual.]

Defn: Containing, or consisting of, three languages; expressed in three languages. The much-noted Rosetta stone . . . bears upon its surface a trilingual inscription. I. Taylor.

TRILINGUAR Tri*lin"guar, a.

Defn: See Trilingual.

TRILITERAL Tri*lit"er*al, a. Etym: [Pref. tri- + literal.]

Defn: Consisting of three letters; trigrammic; as, a triliteral root or word. — n.

Defn: A triliteral word.

TRILITERALISM Tri*lit"er*al*ism, n.

Defn: Same as Triliterality.

TRILITERALITY; TRILITERALNESS Tri*lit`er*al"i*ty, Tri*lit"er*al*ness, n.

Defn: The quality of being triliteral; as, the triliterality of Hebrew roots. W. D. Whitney.

TRILITH Tri"lith, n.

Defn: Same as Trilithon. Mollett.

TRILITHIC Tri*lith"ic a.

Defn: Pertaining to a trilith.

TRILITHON Tril"i*thon (trîl"î*thôn), n.; pl. Trilithons Etym: [NL., fr. Gr.Tri- ) + (Archæol.)

Defn: A monument consisting of three stones; especially, such a monument forming a kind of doorway, as among the ancient Celts.

TRILL Trill, v. i. Etym: [OE. trillen to roll, turn round; of Scand. origin; cf. Sw. trilla to roll, Dan. trilde, Icel. þyrla to whirl, and E. thrill. Cf. Thrill.]

Defn: To flow in a small stream, or in drops rapidly succeeding each other; to trickle. Sir W. Scott. And now and then an ample tear trilled down Her delicate cheek. Shak. Whispered sounds Of waters, trilling from the riven stone. Glover.

TRILL Trill, v. t. Etym: [OE. trillen; cf. Sw. trilla to roll.]

Defn: To turn round; to twirl. [Obs.] Gascoigne. Bid him descend and trill another pin. Chaucer.

TRILL Trill, v. t. [imp. & p. p. Trilled; p. pr. & vb. n. Trilling.] Etym: [It. trillare; probably of imitative origin.]

Defn: To impart the quality of a trill to; to utter as, or with, a trill; as, to trill the r; to trill a note. The sober-suited songstress trills her lay. Thomson.

TRILL Trill, v. i.

Defn: To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver. To judge of trilling notes and tripping feet. Dryden.

TRILL Trill, n. Etym: [It. trillo, fr. trillare. See Trill to shake.]

1. A sound, of consonantal character, made with a rapid succession of partial or entire intermissions, by the vibration of some one part of the organs in the mouth — tongue, uvula, epiglottis, or lip — against another part; as, the r is a trill in most languages.

2. The action of the organs in producing such sounds; as, to give a trill to the tongue. d

3. (Mus.)

Defn: A shake or quaver of the voice in singing, or of the sound of an instrument, produced by the rapid alternation of two contiguous tones of the scale; as, to give a trill on the high C. See Shake.

TRILLACHAN Tril"la*chan, n. (Zoöl.)

Defn: The oyster catcher. [Prov. Eng.]

TRILLING Tril"ling, n. Etym: [Cf. G. drilling.]

1. One of tree children born at the same birth. Wright.

2. (Crystallog.)

Defn: A compound crystal, consisting of three individuals.

TRILLION Tril"lion, n. Etym: [F. trillion, formed from the pref. tri- in imitation of million a million. Cf. Billion.]

Defn: According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power, or the number represented by a unit with eighteen ciphers annexed. See the Note under Numeration.

TRILLIUM Tril"li*um, n. Etym: [NL.; cf. L. trilix triple-woven, triple.] (Bot.)

Defn: A genus of liliaceous plants; the three-leaved nightshade; — so called because all the parts of the plant are in threes.

TRILLO Tril"lo, n. Etym: [It. See Trill.] (Mus.)

Defn: A trill or shake. See Trill.

TRILOBATE Tri*lo"bate, a. Etym: [Pref. tri- + lobate.]

Defn: Having three lobes.

TRILOBATION Tri`lo*ba"tion, n.

Defn: The state of being trilobate.

TRILOBED Tri"lobed, a. Etym: [Pref. tri- + lobe.]

Defn: Same as Trilobate.

TRILOBITA Tri`lo*bi"ta, n. pl. Etym: [NL.] (Paleon.)

Defn: An extinct order of arthropods comprising the trilobites.

TRILOBITE Tri"lo*bite (tri"lo*bit), n. Etym: [Cf. F. trilobite. See Trilobate.] (Paleon.)

Defn: Any one of numerous species of extinct arthropods belonging to the order Trilobita. Trilobites were very common in the Silurian and Devonian periods, but became extinct at the close of the Paleozoic. So named from the three lobes usually seen on each segment.

TRILOBITIC Tri`lo*bit"ic, a.

Defn: Of, pertaining to or containing, trilobites; as, trilobitic rocks.

TRILOCULAR Tri*loc"u*lar, a. Etym: [Pref. tri- + locular: cf. F. triloculaire.]

Defn: Having three cells or cavities; as, a trilocular capsule; a trilocular heart.

TRILOGY Tril"o*gy, n. Etym: [Gr. Tri-) + trilogie.]

Defn: A series of three dramas which, although each of them is in one sense complete, have a close mutual relation, and form one historical and poetical picture. Shakespeare's " Henry VI." is an example. On the Greek stage, a drama, or acted story, consisted in reality of three dramas, called together a trilogy, and performed consecutively in the course of one day. Coleridge.

TRILUMINAR; TRILUMINOUS Tri*lu"mi*nar, Tri*lu"mi*nous, a. Etym: [Pref. tri- + L. lumen, luminis, light.]

Defn: Having three lights [R.]

TRIM Trim, v. t. [imp. & p. p. Trimmed; p. pr. & vb. n. Trimming.] Etym: [OE. trimen, trumen, AS. trymian, trymman, to prepare, dispose, make strong, fr. trum firm, strong; of uncertain origin.]

1. To make trim; to put in due order for any purpose; to make right, neat, or pleasing; to adjust. The hermit trimmed his little fire. Goldsmith.

2. To dress; to decorate; to adorn; to invest; to embellish; as, to trim a hat. trim a Christmas tree. A rotten building newly trimmed over. Milton. I was trimmed in Julia's gown. Shak.

3. To make ready or right by cutting or shortening; to clip or lop; to curtail; as, to trim the hair; to trim a tree. " And trimmed the cheerful lamp." Byron.

4. (Carp.)

Defn: To dress, as timber; to make smooth.

5. (Naut.) (a) To adjust, as a ship, by arranging the cargo, or disposing the weight of persons or goods, so equally on each side of the center and at each end, that she shall sit well on the water and sail well; as, to trim a ship, or a boat. (b) To arrange in due order for sailing; as, to trim the sails.

6. To rebuke; to reprove; also, to beat. [Colloq.] To trim in (Carp.), to fit, as a piece of timber, into other work. — To trim up, to dress; to put in order. I found her trimming up the diadem On her dead mistress. Shak.

TRIM Trim, v. i.

Defn: To balance; to fluctuate between parties, so as to appear to favor each.

TRIM Trim, n.

1. Dress; gear; ornaments. Seeing him just pass the window in his woodland trim. Sir W. Scott.

2. Order; disposition; condition; as, to be in good trim. " The trim of an encounter." Chapman.

3. The state of a ship or her cargo, ballast, masts, etc., by which she is well prepared for sailing.

4. (Arch)

Defn: The lighter woodwork in the interior of a building; especially, that used around openings, generally in the form of a molded architrave, to protect the plastering at those points. In ballast trim (Naut.), having only ballast on board. R. H. Dana, Jr. — Trim of the masts (Naut.), their position in regard to the ship and to each other, as near or distant, far forward or much aft, erect or raking. — Trim of sails (Naut.), that adjustment, with reference to the wind, witch is best adapted to impel the ship forward.

TRIM Trim, a. [Compar. Trimmer; superl. Trimmest.] Etym: [See Trim, v. t.]

Defn: Fitly adjusted; being in good order., or made ready for service or use; firm; compact; snug; neat; fair; as, the ship is trim, or trim built; everything about the man is trim; a person is trim when his body is well shaped and firm; his dress is trim when it fits closely to his body, and appears tight and snug; a man or a soldier is trim when he stands erect. With comely carriage of her countenance trim. Spenser. So deemed I till I viewed their trim array Of boats last night. Trench.

TRIMACULATED Tri*mac"u*la`ted, a. Etym: [Pref. tri- + maculated.]

Defn: Marked with three spots, or maculæ.

TRIMELLIC Tri*mel"lic, a. Etym: [Pref. tri- + L. mel, gen. mellis, honey.] (Chem.)

Defn: Of, pertaining to, or designating, a certain tribasic acid (called also trimellitic acid) metameric with trimesitic acid.

TRIMEMBRAL Tri*mem"bral, a. Etym: [L. trimembris triplemembered. See Tri-, and Member.]

Defn: Having, or consisting of, three members.

TRIMERA Tri"me*ra, n. pl. Etym: [NL. See Tri-, and -mere.] (Zoöl.)

Defn: A division of Coleoptera including those which have but three joints in the tarsi.

TRIMERAN Tri"mer*an, n. (Zoöl.)

Defn: One of the Trimera. Also used adjectively.

TRIMEROUS Tri"mer*ous, a. Etym: [See Trimera.] (Bot.)

Defn: Having the parts in threes.

TRIMESITIC Tri`me*sit"ic, a. Etym: [Pref. tri- + mesitylene + -ic.] (Chem.)

Defn: Of, pertaining to, or designating, a tribasic acid, C6H3.(CO2)3, of the aromatic series, obtained, by the oxidation of mesitylene, as a white crystalline substance. [Written also trimesic.]

TRIMESTER Tri*mes"ter, n. Etym: [L. trimestris of three months; tri- (see Tri-) + mensis month: cf. F. trimestre.]

Defn: A term or period of three months.

TRIMESTRAL Tri*mes"tral, a.

Defn: Trimestrial. Southey.

TRIMESTRIAL Tri*mes"tri*al, a.

Defn: Of or pertaining to a trimester, or period of three months; occurring once in every three months; quarterly.

TRIMETER Trim"e*ter, a. Etym: [L. trimetrus, Gr. Tri-) + measure. See Meter measure.] (Pros.)

Defn: Consisting of three poetical measures. — n.

Defn: A poetical division of verse, consisting of three measures. Lowth.

TRIMETHYL Tri*meth"yl.

Defn: (Chem.) A prefix or combining form (also used adjectively) indicating the presence of three methyl groups.

TRIMETHYLAMINE Tri*meth`yl*am"ine, n. Etym: [Trimethyl- + amine.] (Chem.)

Defn: A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.

TRIMETHYLENE Tri*meth"yl*ene, n. (Chem.)

Defn: A gaseous hydrocarbon, C3H6, isomeric with propylene and obtained from it indirectly. It is the base of a series of compounds analogous to the aromatic hydrocarbons.

TRIMETRIC Tri*met"ric, a. Etym: [Pref. tri- + Gr. (Crystallog.)

Defn: Same as Orthorhombic.

TRIMETRICAL Tri*met"ric*al, a.

Defn: Same as Trimeter.

TRIMLY Trim"ly, adv.

Defn: In a trim manner; nicely.

TRIMMER Trim"mer, n.

1. One who trims, arranges, fits, or ornaments.

2. One who does not adopt extreme opinions in politics, or the like; one who fluctuates between parties, so as to appear to favor each; a timeserver. Thus Halifax was a trimmer on principle. Macaulay.

3. An instrument with which trimming is done.

4. (Arch.)

Defn: A beam, into which are framed the ends of headers in floor framing, as when a hole is to be left for stairs, or to avoid bringing joists near chimneys, and the like. See Illust. of Header.

TRIMMING Trim"ming,

Defn: a. from Trim, v. The Whigs are, essentially, an inefficient, trimming, halfway sort of a party. Jeffrey. Trimming joist (Arch.), a joist into which timber trimmers are framed; a header. See Header. Knight.

TRIMMING Trim"ming, n.

1. The act of one who trims.

2. That which serves to trim, make right or fitting, adjust, ornament, or the like; especially, the necessary or the ornamental appendages, as of a garment; hence, sometimes, the concomitants of a dish; a relish; — usually in the pluraltrimmings..

3. The act of reprimanding or chastisting; as, to give a boy a trimming. [Colloq.]

TRIMMINGLY Trim"ming*ly, adv.

Defn: In a trimming manner.

TRIMNESS Trim"ness, n.

Defn: The quality or state of being trim; orderliness; compactness; snugness; neatness.

TRIMORPH Tri"morph, n. Etym: [See Trimorphous.] (Crystallog.)

Defn: A substance which crystallizes in three distinct forms, or which has three distinct physical states; also, any one of these distinct forms. See Trimorphism, 1.

TRIMORPHIC; TRIMORPHOUS Tri*mor"phic, Tri*mor"phous, a. Etym: [Gr. Tri-) +

Defn: Of, pertaining to, or characterized by, trimorphism; — contrasted with monomorphic, dimorphic, and polymorphic.

TRIMORPHISM Tri*mor"phism, n. Etym: [See Trimorphic.]

1. (Crystallog.)

Defn: The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite. See Pleomorphism.

2. (Biol.)

Defn: The coëxistence among individuals of the same species of three distinct forms, not connected, as a rule, by intermediate gradations; the condition among individuals of the same species of having three different shapes or proportions of corresponding parts; — contrasted with polymorphism, and dimorphism. Heterogonous trimporphism (Bot.), that condition in which flowers of plants of the same species have three different lengths of stamens, short, medium, and long, the blossoms of one individual plant having short and medium stamens and a long style, those of another having short and long stamens and a style of medium length, and those of a third having medium and long stamens and a short style, the style of each blossom thus being of a length not represented by its stamens.

TRIMURTI Tri*mur"ti, n. Etym: [Skr. trim; tri three + m body.] (Hindoo Myth.)

Defn: The triad, or trinity, of Hindoo gods, consisting of Brahma, the Creator, Vishnu, the Preserver, and Siva, the Destroyer. [Spelled also Trimurtti.]

TRIMYARIAN Trim`y*a"ri*an, n. Etym: [Pref. tri + Gr. (Zoöl.)

Defn: A lamellibranch which has three muscular scars on each valve.

TRINAL Tri"nal, a. Etym: [L. trinus triple, trini three each, fr. tres, tria, three. See Three, and cf. Trine, a. & n., Tern, a.]

Defn: Threefold. "Trinal unity." Milton. In their trinal triplicities on high. Spenser.

TRINDLE Trin"dle, v. t. & n.

Defn: See Trundle.

TRINE Trine, a. Etym: [See Trinal.]

Defn: Threefold; triple; as, trine dimensions, or length, breadth, and thickness.

TRINE Trine, n. Etym: [F. trine, trin. See Trinal.]

1. (Astrol.)

Defn: The aspect of planets distant from each other 120 degrees, or one third of the zodiac; trigon. In sextile, square, and trine. Milton.

2. A triad; trinity. [R.] A single trine of brazen tortoises. Mrs. Browning. Eternal One, Almighty Trine! Keble.

TRINE Trine, v. t.

Defn: To put in the aspect of a trine. [R.] By fortune he [Saturn] was now to Venus trined. Dryden.

TRINERVATE Tri*nerv"ate, a. Etym: [NL. trinervatus; pref. tri- + L. nervus nerve.] (Bot.)

Defn: Having three ribs or nerves extending unbranched from the base to the apex; — said of a leaf. Gray.

TRINERVE; TRINERVED Tri"nerve`, Tri"nerved`, a. Etym: [Pref. tri- + nerve.] (Bot.)

Defn: Same as Trinervate.

TRINGA Trin"ga, n. Etym: [NL.] (Zoöl.)

Defn: A genus of limicoline birds including many species of sandpipers. See Dunlin, Knot, and Sandpiper.

TRINGLE Trin"gle, n. Etym: [F. tringle.]

Defn: A curtain rod for a bedstead.

TRINGOID Trin"goid, a. Etym: [Tringa + -oid.] (Zoöl.)

Defn: Of or pertaining to Tringa, or the Sandpiper family.

TRINITARIAN Trin`i*ta"ri*an, a. Etym: [Cf. F. trinitaire. See Trinity.]

Defn: Of or pertaining to the Trinity, the doctrine of the Trinity, or believers in that doctrine.

TRINITARIAN Trin`i*ta"ri*an, n.

1. One who believes in the doctrine of the Trinity.

2. (Eccl. Hist.)

Defn: One of a monastic order founded in Rome in 1198 by St. John of Matha, and an old French hermit, Felix of Valois, for the purpose of redeeming Christian captives from the Mohammedans.

TRINITARIANISM Trin`i*ta"ri*an*ism, n.

Defn: The doctrine of the Trinity; the doctrine that there are three distinct persons in the Godhead.

TRINITROCELLULOSE Tri*ni`tro*cel"lu*lose", n.

Defn: Gun cotton; — so called because regarded as containing three nitro groups.

TRINITROPHENOL Tri*ni`tro*phe"nol, n. (Chem.)

Defn: Picric acid.

TRINITY Trin"i*ty, n. Etym: [OE. trinitee, F. trinité, L. trinitas, fr. trini three each. See Trinal.]

1. (Christian Theol.)

Defn: The union of three persons (the Father, the Son, and the Holy Ghost) in one Godhead, so that all the three are one God as to substance, but three persons as to individuality.

2. Any union of three in one; three units treated as one; a triad, as the Hindoo trinity, or Trimurti.

3. Any symbol of the Trinity employed in Christian art, especially the triangle. Trinity House, an institution in London for promoting commerce and navigation, by licensing pilots, ordering and erecting beacons, and the like. — Trinity Sunday, the Sunday next after Whitsunday; — so called from the feast held on that day in honor of the Holy Trinity. — Trinity term. (Law) See the Note under Term, n., 5.

TRINIUNITY Trin`i*u"ni*ty, n. Etym: [See Trinity, and Unity.]

Defn: Triunity; trinity. [Obs.] As for terms of trinity, triniunity, . . . and the like, they reject them as scholastic notions. Milton.

TRINK Trink, n.

Defn: A kind of fishing net. [Obs.] Crabb.

TRINKET Trin"ket, n. Etym: [F. trinquet foremast, also, a certain sail, trinquette a triangular sail, or Sp. trinquete triangular.] (Naut.)

Defn: A three-cornered sail formerly carried on a ship's foremast, probably on a lateen yard. Sailing always with the sheets of mainsail and trinket warily in our hands. Hakluyt.

TRINKET Trin"ket, n. Etym: [OE. trenket a sort of knife, hence, probably, a toy knife worn as an ornament; probably from an Old French dialectic form of trenchier to cut. Cf. Trench, v. t.]

1. A knife; a cutting tool. Tusser.

2. A small ornament, as a jewel, ring, or the like.

3. A thing of little value; a trifle; a toy.

TRINKET Trin"ket, v. i.

Defn: To give trinkets; hence, to court favor; to intrigue. [Obs.] South.

TRINKETER Trin"ket*er, n.

Defn: One who trinkets. [Obs.]

TRINKETRY Trin"ket*ry, n.

Defn: Ornaments of dress; trinkets, collectively. No trinketry on front, or neck, or breast. Southey.

TRINKLE Trin"kle, v. i.

Defn: To act secretly, or in an underhand way; to tamper. [Obs.] Wright.

TRINOCTIAL Tri*noc"tial, a. Etym: [L. trinoctialis for three nights; tri- (see Tri-) + nox, noctis, night.]

Defn: Lasting during three nights; comprising three nights.

TRINODAL Tri*nod"al, a. Etym: [L. trinodis three-knotted; tri- (see Tri-) + nodus knot.]

1. (Bot.)

Defn: Having three knots or nodes; having three points from which a leaf may shoot; as, a trinodal stem.

2. (Geom.)

Defn: Having three nodal points.

TRINOMIAL Tri*no"mi*al, n. Etym: [Pref. tri- + -nomial as in binomial: cf. F. trinôme.] (Math.)

Defn: A quantity consisting of three terms, connected by the sign + or -; as, x + y + z, or ax + 2b - c2.

TRINOMIAL Tri*no"mi*al, a. (Math.)

Defn: Consisting of three terms; of or pertaining to trinomials; as, a trinomial root.

TRINOMINAL Tri*nom"i*nal, n. & a. Etym: [Pref. tri- + L. nomen, nominis, name: cf. L. trinominis three-named.] (Math.)

Defn: Trinomial.

TRINUCLEUS Tri*nu"cle*us, n. Etym: [Pref. tri- + nucleus.] (Paleon.)

Defn: A genus of Lower Silurian trilobites in which the glabella and cheeks form three rounded elevations on the head.

TRIO Tri"o, n. Etym: [It., fr. L. tres, tria, three: cf. F. trio, from the Italian. See Three.]

1. Three, considered collectively; three in company or acting together; a set of three; three united. The trio were well accustomed to act together, and were linked to each other by ties of mutual interest. Dickens.

2. (Mus.) (a) A composition for three parts or three instruments. (b) The secondary, or episodical, movement of a minuet or scherzo, as in a sonata or symphony, or of a march, or of various dance forms; — not limited to three parts or instruments.

TRIOBOLAR; TRIOBOLARY Tri*ob"o*lar, Tri*ob"o*la*ry, a. Etym: [LL. triobolaris, fr. L. triobolus a piece of three oboli, Gr. Tri-, and Obolus.]

Defn: Of the value of three oboli; hence, mean; worthless. [Obs.] It may pass current . . . for a triobolar ballad. Cheyne.

TRIOCTILE Tri*oc"tile, n. Etym: [Pref. tri- + octile.] (Astrol.)

Defn: An aspect of two planets with regard to the earth when they are three octants, or three eighths of a circle, that is, 135 degrees, distant from each other. Hutton.

TRIOECIA Tri*oe"ci*a, n. pl. Etym: [NL. See Trioecious.] (Bot.)

Defn: The third order of the Linnæan class Polygamia.

TRIOECIOUS Tri*oe"cious, a. Etym: [Pref. tri- + Gr. (Bot.)

Defn: Having three sorts of flowers on the same or on different plants, some of the flowers being staminate, others pistillate, and others both staminate and pistillate; belonging to the order Trioecia.

TRIOLE Tri"ole, n. Etym: [See Triolet.] (Mus.)

Defn: Same as Triplet.

TRIOLEIN Tri*o"le*in, n. Etym: [Pref. tri- + olein.] (Physiol. Chem.)

Defn: See Olein.

TRIOLET Tri"o*let, n. Etym: [F. triolet. See Trio.]

Defn: A short poem or stanza of eight lines, in which the first line is repeated as the fourth and again as the seventh line, the second being, repeated as the eighth. Brande & C.

TRIONAL Tri"o*nal, n. [Pref. tri- + sulphonal; — so called because it contains three ethyls.] (Chem.)

Defn: A compound similar to sulphonal, used as a hypnotic in medicine.

TRIONYCHOIDEA Tri*on`y*choi"de*a, n. pl. Etym: [NL. See Trionyx, and -old.] (Zoöl.)

Defn: A division of chelonians which comprises Trionyx and allied genera; — called also Trionychoides, and Trionychina.

TRIONYX Tri*on"yx, n. Etym: [NL., fr. Gr. Tri-) + (Zoöl.)

Defn: A genus of fresh-water or river turtles which have the shell imperfectly developed and covered with a soft leathery skin. They are noted for their agility and rapacity. Called also soft tortoise, soft-shell tortoise, and mud turtle.

Note: The common American species (Trionyx, or Aspidonectus, ferox) becomes over a foot in length and is very voracious. Similar species are found in Asia and Africa.

TRIOR Tri"or, n. (Law)

Defn: Same as Trier, 2 and 3.

TRIOSE Tri"ose, n. [Tri- + -ose.] (Chem.) (a) A sugar derived from a trihydric alcohol. (b) A trisaccharide.

TRIOXIDE Tri*ox"ide, n. Etym: [Pref. tri- + oxide.] (Chem.)

Defn: An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; — formerly called tritoxide.

TRIP Trip, n. i. [imp. & p. p. Tripped; p. pr. & vb. n. Tripping.] Etym: [OE. trippen; akin to D. trippen, Dan. trippe, and E. tramp. See Tramp.]

1. To move with light, quick steps; to walk or move lightly; to skip; to move the feet nimbly; — sometimes followed by it. See It, 5. This horse anon began to trip and dance. Chaucer. Come, and trip it, as you go, On the light fantastic toe. Milton. She bounded by, and tripped so light They had not time to take a steady sight. Dryden.

2. To make a brief journey or pleasure excursion; as, to trip to Europe.

3. To take a quick step, as when in danger of losing one's balance; hence, to make a false; to catch the foot; to lose footing; to stumble.

4. Fig.: To be guilty of a misstep; to commit an offense against morality, propriety, or rule; to err; to mistake; to fail. "Till his tongue trip." Locke. A blind will thereupon comes to be led by a blind understanding; there is no remedy, but it must trip and stumble. South. Virgil is so exact in every word that none can be changed but for a worse; he pretends sometimes to trip, but it is to make you think him in danger when most secure. Dryden. What dost thou verily trip upon a word R. Browning.

TRIP Trip, v. t.

1. To cause to stumble, or take a false step; to cause to lose the footing, by striking the feet from under; to cause to fall; to throw off the balance; to supplant; — often followed by up; as, to trip up a man in wrestling. The words of Hobbes's defense trip up the heels of his cause. Abp. Bramhall.

2. Fig.: To overthrow by depriving of support; to put an obstacle in the way of; to obstruct; to cause to fail. To trip the course of law, and blunt the sword. Shak.

3. To detect in a misstep; to catch; to convict. [R.] These her women can trip me if I err. Shak.

4. (Naut.) (a) To raise (an anchor) from the bottom, by its cable or buoy rope, so that it hangs free. (b) To pull (a yard) into a perpendicular position for lowering it.

5. (Mach.)

Defn: To release, let fall, or see free, as a weight or compressed spring, as by removing a latch or detent.

TRIP Trip, n.

1. A quick, light step; a lively movement of the feet; a skip. His heart bounded as he sometimes could hear the trip of a light female step glide to or from the door. Sir W. Scott.

2. A brief or rapid journey; an excursion or jaunt. I took a trip to London on the death of the queen. Pope.

3. A false step; a stumble; a misstep; a loss of footing or balance. Fig.: An error; a failure; a mistake. Imperfect words, with childish trips. Milton. Each seeming trip, and each digressive start. Harte.

4. A small piece; a morsel; a bit. [Obs.] "A trip of cheese." Chaucer.

5. A stroke, or catch, by which a wrestler causes his antagonist to lose footing. And watches with a trip his foe to foil. Dryden. It is the sudden trip in wrestling that fetches a man to the ground. South.

6. (Naut.)

Defn: A single board, or tack, in plying, or beating, to windward.

7. A herd or flock, as of sheep, goats, etc. [Prov. Eng. & Scott.]

8. A troop of men; a host. [Obs.] Robert of Brunne.

9. (Zoöl.)

Defn: A flock of widgeons.

TRIPALMITATE Tri*pal"mi*tate, n. Etym: [Pref. tri- + palmitate.] (Chem.)

Defn: A palmitate derived from three molecules of palmitic acid.

TRIPALMITIN Tri*pal"mi*tin, n. Etym: [Pref. tri- + palmitin.] (Physiol. Chem.)

Defn: See Palmitin.

TRIPANG Tri*pang", n. (Zoöl.)

Defn: See Trepang.

TRIPARTED Tri"part`ed, a. Etym: [Pref. tri- + parted.]

1. (Her.)

Defn: Parted into three piece; having three parts or pieces; — said of the field or of a bearing; as, a cross triparted.

2. (Bot.)

Defn: Divided nearly to the base into three segments or lobes.

TRIPARTIBLE Tri*part"i*ble, a.

Defn: Divisible into three parts.

TRIPARTIENT Tri*par"tient, a. Etym: [See Tripartite.] (Arith.)

Defn: Dividing into three parts; — said of a number which exactly divides another into three parts.

TRIPARTITE Trip"ar*tite, a. Etym: [L. tripartitus; tri- (see Tri-) + partitus, p. p. of partiri to part, to divide. See Part, v. i.]

1. Divided into three parts; triparted; as, a tripartite leaf.

2. Having three corresponding parts or copies; as, to make indentures tripartite. A. Smith.

3. Made between three parties; as, a tripartite treaty.

TRIPARTITELY Trip`ar*tite*ly, adv.

Defn: In a tripartite manner.

TRIPARTITION Trip`ar*ti"tion, n. Etym: [Cf. F. tripartition.]

Defn: A division by threes, or into three parts; the taking of a third part of any number or quantity.

TRIPASCHAL Tri*pas"chal, a. Etym: [Pref. tri- + paschal.]

Defn: Including three passovers.

TRIPE Tripe, n. Etym: [OE. tripe, F. tripe; of uncertain origin; cf. Sp. & Pg. tripa, It. trippa, OD. tripe, W. tripa, Armor. stripen.]

1. The large stomach of ruminating animals, when prepared for food. How say you to a fat tripe finely broiled Shak.

2. The entrails; hence, humorously or in contempt, the belly; — generally used in the plural. Howell.

TRIPEDAL Trip"e*dal, a. Etym: [L. tripedalis; tri- (see Tri-) + pes, pedis, a foot.]

Defn: Having three feet.

TRIPE-DE-ROCHE Tripe`-de-roche", n. Etym: [F.] (Bot.)

Defn: Same as Rock tripe, under Rock.

TRIPEL Trip"el, n. (Min.)

Defn: Same as Tripoli.

TRIPEMAN Tripe"man, n.; pl. -men (.

Defn: A man who prepares or sells tripe.

TRIPENNATE Tri*pen"nate, a. Etym: [Pref. tri- + pennate.] (Bot.)

Defn: Same as Tripinnate.

TRIPERSONAL Tri*per"son*al, a. Etym: [Pref. tri- + personal.]

Defn: Consisting of three persons. Milton.

TRIPERSONALIST Tri*per"son*al*ist, n.

Defn: A Trinitarian.

TRIPERSONALITY Tri*per`son*al"i*ty, n.

Defn: The state of existing as three persons in one Godhead; trinity.

TRIPERY Trip"er*y, n. Etym: [Cf. F. triperie.]

Defn: A place where tripe is prepared or sold. London Quart. Rev.

TRIPESTONE Tripe"stone`, n. (Min.)

Defn: A variety of anhydrite composed of contorted plates fancied to resemble pieces of tripe.

TRIPETALOID Tri*pet"al*oid, a. Etym: [Pref. tri- + petaloid.] (Bot.)

Defn: Having the form or appearance of three petals; appearing as if furnished with three petals.

TRIPETALOUS Tri*pet"al*ous, a. Etym: [Pref. tri- + petalous: cf. F. tripétale.] (Bot.)

Defn: Having three petals, or flower leaves; three-petaled.

TRIP HAMMER Trip" ham`mer.

Defn: A tilt hammer.

TRIPHANE Tri"phane, n. Etym: [Gr. Tri-) + to appear cf. F. triphane.] (Min.)

Defn: Spodumene.

TRIPHTHONG Triph"thong, n. Etym: [Pref. tri- + -phthong, as in diphthong: cf. F. triphthonque.] (Orthoëpy)

Defn: A combination of three vowel sounds in a single syllable, forming a simple or compound sound; also, a union of three vowel characters, representing together a single sound; a trigraph; as, eye, -ieu in adieu, -eau in beau, are examples of triphthongs.

TRIPHTHONGAL Triph*thon"gal, a.

Defn: Of or pertaining to a triphthong; consisting of three vowel sounds pronounced together in a single syllable.

TRIPHYLINE Triph"y*line, n.

Defn: Triphylite.

TRIPHYLITE Triph"y*lite, n. Etym: [Pref. tri- + Gr. (Min.)

Defn: A mineral of a grayish-green or bluish color, consisting of the phosphates of iron, manganese, and lithia.

Note: A salmon-colored or clove-brown variety containing but little iron is known as lithiophilite.

TRIPHYLLOUS Triph"yl*lous, a. Etym: [Gr. Tri-) + a leaf: cf. F. triphylle.] (Bot.)

Defn: Having three leaves; three-leaved.

TRIPINNATE Tri*pin"nate, a. Etym: [Pref. tri- + pinnate.] (Bot.)

Defn: Having bipinnate leaflets arranged on each side of a rhachis.

TRIPINNATIFID Tri`pin*nat"i*fid, a. Etym: [Pref. tri- + pinnatifid.] (Bot.)

Defn: Thrice pinnately cleft; — said of a pinnatifid leaf when its segments are pinnatifid, and the subdivisions of these also are pinnatifid.

TRIPITAKA Tri*pit"a*ka, n. [Skr. tripitsaka.]

Defn: The three divisions, or "baskets" (pitakas), of buddhist scriptures, — the Vinayapitaka [Skr. Vinayapitsaka] , or Basket of Discipline; Suttapitaka [Pali] , or Basket of Discourses; and Abhidhammapitaka [Pali] , or Basket of Metaphysics.

TRIPLASIAN Tri*pla"sian, a. Etym: [Gr.

Defn: Three-fold; triple; treble. [Obs.] Cudworth.

TRIPLE Tri"ple, a. Etym: [L. triplus; tri- (see Tri-) + -plus, as in duplus double: cf. F. triple. See Double, and cf. Treble.]

1. Consisting of three united; multiplied by three; threefold; as, a triple knot; a triple tie. By thy triple shape as thou art seen. Dryden.

2. Three times repeated; treble. See Treble.

3. One of three; third. [Obs.] Shak. Triple crown, the crown, or tiara, of the pope. See Tiara, 2. — Triple-expansion steam engine, a compound steam engine in which the same steam performs work in three cylinders successively. — Triple measure (Mus.), a measure of tree beats of which first only is accented. — Triple ratio (Math.), a ratio which is equal to 3. — Triple salt (Chem.), a salt containing three distinct basic atoms as radicals; thus, microcosmic salt is a triple salt. — Triple star (Astron.), a system of three stars in close proximity. — Triple time (Mus.), that time in which each measure is divided into three equal parts. — Triple valve, in an automatic air brake for railroad cars, the valve under each car, by means of which the brake is controlled by a change of pressure in the air pipe leading from the locomotive.

TRIPLE Tri"ple, v. i. [imp. & p. p. Tripled; p. pr. & vb. n. Tripling.] Etym: [Cf. F. tripler. See Triple, a.]

Defn: To make threefold, or thrice as much or as many; to treble; as, to triple the tax on coffee.

TRIPLE-CROWNED Tri"ple-crowned`, a.

Defn: Having three crowns; wearing the triple crown, as the pope.

TRIPLE-HEADED Tri"ple-head`ed, a.

Defn: Having three heads; three-headed; as, the triple-headed dog Cerberus.

TRIPLET Trip"let, n. Etym: [From Triple.]

1. A collection or combination of three of a kind; three united.

2. (Poetry)

Defn: Three verses rhyming together.

3. (Mus.)

Defn: A group of three notes sung or played in the tree of two.

4. pl.

Defn: Three children or offspring born at one birth.

TRIPLE-TAIL Tri"ple-tail`, n. (Zoöl.)

Defn: An edible fish (Lobotes Surinamensis) found in the warmer parts of all the oceans, and common on the southern and middle coasts of the United States. When living it is silvery gray, and becomes brown or blackish when dead. Its dorsal and anal fins are long, and extend back on each side of the tail. It has large silvery scales which are used in the manufacture of fancy work. Called also, locally, black perch, grouper, and flasher.

TRIPLEX Tri"plex, a. (Mach.)

Defn: Havingthree principal operative parts or motions, so as to produce a three-fold effect.

TRIPLICATE Trip"li*cate, a. Etym: [L. triplicatus, p. p. of triplicare to triple, treble; tri- (see Tri-) + plicare to fold. See Ply, v. t.]

Defn: Made thrice as much; threefold; tripled. Triplicate ratio (Math.), the ratio of the cubes of two quantities; thus, the triplicate ratio of a to b is a3: b3.

TRIPLICATE Trip"li*cate, n.

Defn: A third thing corresponding to two others of the same kind.

TRIPLICATE-TERNATE Trip"li*cate-ter`nate, a. (Bot.)

Defn: Triternate.

TRIPLICATION Trip"li*ca"tion, n. Etym: [L. triplicatio: cf. F. triplication.]

1. The act of tripling, or making threefold, or adding three together. Glanvill.

2. (Civil Law)

Defn: Same as Surrejoinder.

TRIPLICITY Tri*plic"i*ty, n. Etym: [Cf. F. triplicité, fr. L. triplex, triplicis, threefold. See Triplicate, a.]

Defn: The quality or state of being triple, or threefold; trebleness. In their trinal triplicities on high. Spenser.

TRIPLICOSTATE Trip`li*cos"tate, a. Etym: [Triple + costate.] (Bot.)

Defn: Three-ribbed.

TRIPLITE Trip"lite, n. Etym: [Cf. F. triplite. See Triple.] (Min.)

Defn: A mineral of a dark brown color, generally with a fibrous, massive structure. It is a fluophosphate of iron and manganese.

TRIPLOBLASTIC Trip`lo*blas"tic, a. Etym: [Gr. -blast + -ic.] (Biol.)

Defn: Of, pertaining to, or designating, that condition of the ovum in which there are three primary germinal layers, or in which the blastoderm splits into three layers.

TRIPLOIDITE Trip*loi"dite, n. (Min.)

Defn: A manganese phosphate near triplite, but containing hydroxyl instead of fluorine.

TRIPLY Trip"ly, adv.

Defn: In a triple manner.

TRIPMADAM Trip"mad`am, n. Etym: [F. tripe-madame, trique-madame.] (Bot.)

Defn: Same as Prickmadam.

TRIPOD Tri"pod, n. Etym: [L. tripus, -odis, Gr. Tri-) + Foot, and cf. Tripos, Trivet.]

1. Any utensil or vessel, as a stool, table, altar, caldron, etc., supported on three feet.

Note: On such, a stool, in the temple of Apollo at Delphi, the Pythian priestess sat while giving responses to those consulting the Delphic oracle.

2. A three-legged frame or stand, usually jointed at top, for supporting a theodolite, compass, telescope, camera, or other instrument. Tripod of life, or Vital tripod (Physiol.), the three organs, the heart, lungs, and brain; — so called because their united action is necessary to the maintenance of life.

TRIPODIAN Tri*po"di*an, n. (Mus.)

Defn: An ancient stringed instrument; — so called because, in form, it resembled the Delphic tripod.

TRIPODY Trip"o*dy, n. Etym: [Pref. tri- + -pody, as in dipody.] (Pros.)

Defn: Three metrical feet taken together, or included in one measure.

TRIPOLI Trip"o*li, n. (Min.)

Defn: An earthy substance originally brought from Tripoli, used in polishing stones and metals. It consists almost wholly of the siliceous shells of diatoms.

TRIPOLINE Trip"o*line, a.

1. Of or pertaining to Tripoli or its inhabitants; Tripolitan.

2. Of or pertaining to tripoli, the mineral.

TRIPOLITAN Tri*pol"i*tan, a.

Defn: Of or pertaining to Tripoli or its inhabitants; Tripoline. — n.

Defn: A native or inhabitant of Tripoli.

TRIPOS Tri"pos, n.; pl. Triposes. Etym: [Gr. Tripod.]

1. A tripod. [Obs.] Dryden.

2. A university examination of questionists, for honors; also, a tripos paper; one who prepares a tripos paper. [Cambridge University, Eng.] Classical tripos examination, the final university examination for classical honors, optional to all who have taken the mathematical honors. C. A. Bristed. — Tripos paper, a printed list of the successful candidates for mathematical honors, accompanied by a piece in Latin verse. There are two of these, designed to commemorate the two tripos days. The first contains the names of the wranglers and senior optimes, and the second the names of the junior optimes. The word tripos is supposed to refer to the three-legged stool formerly used at the examinations for these honors, though some derive it from the three brackets formerly printed on the back of the paper. C. A. Bristed.

TRIPPANT Trip"pant, a. (Her.)

Defn: See Tripping, a., 2.

TRIPPER Trip"per, n.

1. One who trips or supplants; also, one who walks or trips nimbly; a dancer.

2. An excursionist.

TRIPPET Trip"pet, n. (Mach.)

Defn: A cam, wiper, or projecting piece which strikes another piece repeatedly.

TRIPPING Trip"ping, a.

1. Quick; nimble; stepping lightly and quickly.

2. (Her.)

Defn: Having the right forefoot lifted, the others remaining on the ground, as if he were trotting; trippant; — said of an animal, as a hart, buck, and the like, used as a bearing.

TRIPPING Trip"ping, n.

1. Act of one who, or that which, trips.

2. A light dance. Other trippings to be trod of lighter toes. Milton.

3. (Naut.)

Defn: The loosing of an anchor from the ground by means of its cable or buoy rope. Tripping line (Naut.), a small rope attached to the topgallant or royal yard, used to trip the yard, and in lowering it to the deck; also, a line used in letting go the anchor. Luce.

TRIPPINGLY Trip"ping*ly, adv.

Defn: In a tripping manner; with a light, nimble, quick step; with agility; nimbly. Sing, and dance it trippingly. Shak. Speak the speech . . . trippingly on the tongue. Shak.