TA Ta, v. t. (continued 5)

Defn: Same as Tertiary.

TERTIAN Ter"tian, a. Etym: [L. tertianus, from tertius the third. See Tierce.] (Med.)

Defn: Occurring every third day; as, a tertian fever.

TERTIAN Ter"tian, n. Etym: [L. tertiana (sc. febris): cf. OF. tertiane.]

1. (Med.)

Defn: A disease, especially an intermittent fever, which returns every third day, reckoning inclusively, or in which the intermission lasts one day.

2. A liquid measure formerly used for wine, equal to seventy imperial, or eighty-four wine, gallons, being one third of a tun.

TERTIARY Ter"ti*a*ry, a. Etym: [L. tertiarius containing a third part, fr. tertius third: cf. F. tertiaire. See Tierce.]

1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. Trench.

2. (Chem.)

Defn: Possessing some quality in the third degree; having been subjected to the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. Cf. Primary, and Secondary. (CH3)3C.OH.

3. (Geol.)

Defn: Later than, or subsequent to, the Secondary.

4. (Zoöl.)

Defn: Growing on the innermost joint of a bird's wing; tertial; — said of quills. Tertiary age. (Geol.) See under Age, 8. — Tertiary color, a color produced by the mixture of two secondaries. "The so-called tertiary colors are citrine, russet, and olive." Fairholt. — Tertiary period. (Geol.) (a) The first period of the age of mammals, or of the Cenozoic era. (b) The rock formation of that period; — called also Tertiary formation. See the Chart of Geology. — Tertiary syphilis (Med.), the third and last stage of syphilis, in which it invades the bones and internal organs.

TERTIARY Ter"ti*a*ry, n.; pl. Tertiaries (.

1. (R. C. Ch.)

Defn: A member of the Third Order in any monastic system; as, the Franciscan tertiaries; the Dominican tertiaries; the Carmelite tertiaries. See Third Order, under Third. Addis & Arnold.

2. (Geol.)

Defn: The Tertiary era, period, or formation.

3. (Zoöl.)

Defn: One of the quill feathers which are borne upon the basal joint of the wing of a bird. See Illust. of Bird.

TERTIATE Ter"ti*ate, v. t. Etym: [L. tertiatus, p.p. of tertiare to do for the third time, fr. tertius the third.]

1. To do or perform for the third time. [Obs. & R.] Johnson.

2. (Gun.)

Defn: To examine, as the thickness of the metal at the muzzle of a gun; or, in general, to examine the thickness of, as ordnance, in order to ascertain its strength.

TERTIUM QUID Ter"ti*um quid. [L.]

Defn: A third somewhat; something mediating, or regarded as being, between two diverse or incompatible substances, natures, or positions.

TERUTERO Ter`u*ter"o, n. Etym: [Probably so named from its city.] (Zoöl.)

Defn: The South American lapwing (Vanellus Cayennensis). Its wings are furnished with short spurs. Called also Cayenne lapwing.

TERZA RIMA Ter"za ri"ma. Etym: [It., a third or triple rhyme.]

Defn: A peculiar and complicated system of versification, borrowed by the early Italian poets from the Troubadours.

TERZETTO Ter*zet"to, n. Etym: [It., dim. of terzo the third, L. tertius. See Tierce.] (Mus.)

Defn: A composition in three voice parts; a vocal (rarely an instrumental) trio.

TESLA COIL; TESLA TRANSFORMER Tes"la coil, Tes"la trans*form"er. [After N. Tesla, American electrician.] (Elec.)

Defn: A transformer without iron, for high frequency alternating or oscillating currents; an oscillation transformer.

TESSELAR Tes"sel*ar, a. Etym: [L. tessella a small square piece, a little cube, dim. of tessera a square piece of stone, wood, etc., a die.]

Defn: Formed of tesseræ, as a mosaic.

TESSELLATA Tes`sel*la"ta, n. pl. Etym: [NL. See Tessellate.] (Zoöl.)

Defn: A division of Crinoidea including numerous fossil species in which the body is covered with tessellated plates.

TESSELLATE Tes"sel*late, v. t. [imp. & p. p. Tessellated; p. pr. & vb. n. Tessellating.] Etym: [L. tessellatus tessellated. See Tessellar.]

Defn: To form into squares or checkers; to lay with checkered work. The floors are sometimes of wood, tessellated after the fashion of France. Macaulay.

TESSELLATE Tes"sel*late, a. Etym: [L. tesselatus.]

Defn: Tessellated.

TESSELLATED Tes"sel*la`ted, a.

1. Formed of little squares, as mosaic work; checkered; as, a tessellated pavement.

2. (Bot. & Zoöl.)

Defn: Marked like a checkerboard; as, a tessellated leaf.

TESSELLATION Tes`sel*la"tion, n.

Defn: The act of tessellating; also, the mosaic work so formed. J. Forsyth.

TESSERA Tes"se*ra, n.; pl. Tesseræ. Etym: [L., a square piece, a die. See Tessellar.]

Defn: A small piece of marble, glass, earthenware, or the like, having a square, or nearly square, face, used by the ancients for mosaic, as for making pavements, for ornamenting walls, and like purposes; also, a similar piece of ivory, bone, wood, etc., used as a ticket of admission to theaters, or as a certificate for successful gladiators, and as a token for various other purposes. Fairholt.

TESSERAIC Tes`se*ra"ic, a.

Defn: Diversified by squares; done in mosaic; tessellated. [Obs.] Sir R. Atkyns (1712).

TESSERAL Tes"se*ral, a.

1. Of, pertaining to, or containing, tesseræ.

2. (Crystallog.)

Defn: Isometric.

TESSULAR Tes"su*lar, a. (Crystallog.)

Defn: Tesseral.

TEST Test, n. Etym: [OE. test test, or cupel, potsherd, F. têt, from L. testum an earthen vessel; akin to testa a piece of burned clay, an earthen pot, a potsherd, perhaps for tersta, and akin to torrere to patch, terra earth (cf. Thirst, and Terrace), but cf. Zend tasta cup. Cf. Test a shell, Testaceous, Tester a covering, a coin, Testy, Tête- à-tête.]

1. (Metal.)

Defn: A cupel or cupelling hearth in which precious metals are melted for trial and refinement. Our ingots, tests, and many mo. Chaucer.

2. Examination or trial by the cupel; hence, any critical examination or decisive trial; as, to put a man's assertions to a test. "Bring me to the test." Shak.

3. Means of trial; as, absence is a test of love. Each test every light her muse will bear. Dryden.

4. That with which anything is compared for proof of its genuineness; a touchstone; a standard. Life, force, and beauty must to all impart, At once the source, and end, and test of art. Pope.

5. Discriminative characteristic; standard of judgment; ground of admission or exclusion. Our test excludes your tribe from benefit. Dryden.

6. Judgment; distinction; discrimination. Who would excel, when few can make a test Betwixt indifferent writing and the best Dryden.

7. (Chem.)

Defn: A reaction employed to recognize or distinguish any particular substance or constituent of a compound, as the production of some characteristic precipitate; also, the reagent employed to produce such reaction; thus, the ordinary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt. Test act (Eng. Law), an act of the English Parliament prescribing a form of oath and declaration against transubstantiation, which all officers, civil and military, were formerly obliged to take within six months after their admission to office. They were obliged also to receive the sacrament according to the usage of the Church of England. Blackstone. — Test object (Optics), an object which tests the power or quality of a microscope or telescope, by requiring a certain degree of excellence in the instrument to determine its existence or its peculiar texture or markings. — Test paper. (a) (Chem.) Paper prepared for use in testing for certain substances by being saturated with a reagent which changes color in some specific way when acted upon by those substances; thus, litmus paper is turned red by acids, and blue by alkalies, turmeric paper is turned brown by alkalies, etc. (b) (Law) An instrument admitted as a standard or comparison of handwriting in those jurisdictions in which comparison of hands is permitted as a mode of proving handwriting. — Test tube. (Chem.) (a) A simple tube of thin glass, closed at one end, for heating solutions and for performing ordinary reactions. (b) A graduated tube.

Syn. — Criterion; standard; experience; proof; experiment; trial. — Test, Trial. Trial is the wider term; test is a searching and decisive trial. It is derived from the Latin testa (earthen pot), which term was early applied to the fining pot, or crucible, in which metals are melted for trial and refinement. Hence the peculiar force of the word, as indicating a trial or criterion of the most decisive kind. I leave him to your gracious acceptance, whose trial shall better publish his commediation. Shak. Thy virtue, prince, has stood the test of fortune, Like purest gold, that tortured in the furnace, Comes out more bright, and brings forth all its weight. Addison.

TEST Test, v. t. [imp. & p. p. Tested; p. pr. & vb. n. Testing.]

1. (Metal.)

Defn: To refine, as gold or silver, in a test, or cupel; to subject to cupellation.

2. To put to the proof; to prove the truth, genuineness, or quality of by experiment, or by some principle or standard; to try; as, to test the soundness of a principle; to test the validity of an argument. Experience is the surest standard by which to test the real tendency of the existing constitution. Washington.

3. (Chem.)

Defn: To examine or try, as by the use of some reagent; as, to test a solution by litmus paper.

TEST Test, n. Etym: [L. testis. Cf. Testament, Testify.]

Defn: A witness. [Obs.] Prelates and great lords of England, who were for the more surety tests of that deed. Ld. Berners.

TEST Test, v. i. Etym: [L. testari. See Testament.]

Defn: To make a testament, or will. [Obs.]

TEST; TESTA Test, Tes"ta, n.; pl. E. Tests, L. Testæ. Etym: [L. testa a piece of burned clay, a broken piece of earthenware, a shell. See Test a cupel.]

1. (Zoöl.)

Defn: The external hard or firm covering of many invertebrate animals.

Note: The test of crustaceans and insects is composed largely of chitin; in mollusks it is composed chiefly of calcium carbonate, and is called the shell.

2. (Bot.)

Defn: The outer integument of a seed; the episperm, or spermoderm.

TESTABLE Test"a*ble, a. Etym: [See Testament.]

1. Capable of being tested or proved.

2. Capable of being devised, or given by will.

TESTACEA Tes*ta"ce*a, n. pl. Etym: [NL., fr. L. testaceum a shelled anumal. See Testaceous.] (Zoöl.)

Defn: Invertebrate animals covered with shells, especially mollusks; shellfish.

TESTACEAN Tes*ta"cean, n. (Zoöl.)

Defn: Onr of the Testacea.

TESTACEOGRAPHY Tes*ta`ce*og"ra*phy, n. Etym: [Testacea + -graphy: cf. F. testacéographie.]

Defn: The science which treats of testaceans, or shellfish; the description of shellfish. [R.]

TESTACEOLOGY Tes*ta`ce*ol"o*gy, n. Etym: [Testacea + -logy: cf. F. testacéologie.]

Defn: The science of testaceous mollusks; conchology. [R.]

TESTACEOUS Tes*ta"ceous, a. Etym: [L. testaceus, fr. testa a shell. See Testa.]

1. Of or pertaining to shells; consisted of a hard shell, or having a hard shell.

2. (Bot. & Zoöl.)

Defn: Having a dull red brick color or a brownish yellow color. Testaceous animals (Zoöl.), animals having a firm, calcareous shell, as oysters and clams, thus distinguished from crustaceous animals, whose shells are more thin and soft, and consist of several joints, or articulations, as lobsters and crabs.

TESTACY Tes"ta*cy, n. Etym: [See Testate.] (Law)

Defn: The state or circumstance of being testate, or of leaving a valid will, or testament, at death.

TESTAMENT Tes"ta*ment, n. Etym: [F., fr. L. testamentum, fr. testari to be a witness, to make one's last will, akin to testis a witness. Cf. Intestate, Testify.]

1. (Law)

Defn: A solemn, authentic instrument in writing, by which a person declares his will as to disposal of his estate and effects after his death.

Note: This is otherwise called a will, and sometimes a last will and testament. A testament, to be valid, must be made by a person of sound mind; and it must be executed and published in due form of law. A man, in certain cases, may make a valid will by word of mouth only. See Nuncupative will, under Nuncupative.

2. One of the two distinct revelations of God's purposes toward man; a covenant; also, one of the two general divisions of the canonical books of the sacred Scriptures, in which the covenants are respectively revealed; as, the Old Testament; the New Testament; — often limited, in colloquial language, to the latter. He is the mediator of the new testament . . . for the redemption of the transgressions that were under the first testament. Heb. ix. 15. Holographic testament, a testament written wholly by the testator himself. Bouvier.

TESTAMENTAL Tes`ta*men"tal, a. Etym: [L. testamentalis.]

Defn: Of or pertaining to a testament; testamentary. Thy testamental cup I take, And thus remember thee. J. Montgomery.

TESTAMENTARY Tes`ta*men"ta*ry, a. Etym: [L. testamentarius: cf. F. testamentaire.]

1. Of or pertaining to a will, or testament; as, letters testamentary.

2. Bequeathed by will; given by testament. How many testamentary charities have been defeated by the negligence or fraud of executors! Atterbury.

3. Done, appointed by, or founded on, a testament, or will; as, a testamentary guardian of a minor, who may be appointed by the will of a father to act in that capacity until the child becomes of age.

TESTAMENTATION Tes`ta*men*ta"tion, n.

Defn: The act or power of giving by testament, or will. [R.] Burke.

TESTAMENTIZE Tes"ta*men*tize, v. i.

Defn: To make a will. [Obs.] Fuller.

TESTAMUR Tes*ta"mur, n. Etym: [L., we testify, fr. testari to testify.] (Eng. Universities)

Defn: A certificate of merit or proficiency; — so called from the Latin words, Ita testamur, with which it commences.

TESTATE Tes"tate, a. Etym: [L. testatus, p.p. of testari. See Testament.] (Law)

Defn: Having made and left a will; as, a person is said to die testate. Ayliffe.

TESTATE Tes"tate, n. (Law)

Defn: One who leaves a valid will at death; a testate person. [R.]

TESTATION Tes*ta"tion, n. Etym: [L. testatio.]

Defn: A witnessing or witness. [Obs.] Bp. Hall.

TESTATOR Tes*ta"tor, n. Etym: [L.: cf. F. testateur.] (Law)

Defn: A man who makes and leaves a will, or testament, at death.

TESTATRIX Tes*ta"trix, n. Etym: [L.] (Law)

Defn: A woman who makes and leaves a will at death; a female testator.

TESTE Tes"te, n. Etym: [So called fr. L. teste, abl. of testis a witness, because this was formerly the initial word in the clause.] (Law) (a) A witness. (b) The witnessing or concluding clause, duty attached; — said of a writ, deed, or the like. Burrill.

TESTER Tes"ter, n. Etym: [OE. testere a headpiece, helmet, OF. testiere, F. têtière a head covering, fr. OF. teste the head, F. tête, fr. L. testa an earthen pot, the skull. See Test a cupel, and cf. Testière.]

1. A headpiece; a helmet. [Obs.] The shields bright, testers, and trappures. Chaucer.

2. A flat canopy, as over a pulpit or tomb. Oxf. Gross.

3. A canopy over a bed, supported by the bedposts. No testers to the bed, and the saddles and portmanteaus heaped on me to keep off the cold. Walpole.

TESTER Tes"ter, n. Etym: [For testern, teston, fr. F. teston, fr. OF. teste the head, the head of the king being impressed upon the coin. See Tester a covering, and cf. Testone, Testoon.]

Defn: An old French silver coin, originally of the value of about eighteen pence, subsequently reduced to ninepence, and later to sixpence, sterling. Hence, in modern English slang, a sixpence; — often contracted to tizzy. Called also teston. Shak.

TESTERN Tes"tern, n.

Defn: A sixpence; a tester. [Obs.]

TESTERN Tes"tern, v. t.

Defn: To present with a tester. [Obs.] Shak.

TESTES Tes"tes, n.,

Defn: pl. of Teste, or of Testis.

TESTICARDINES Tes`ti*car"di*nes, n. pl. Etym: [NL. See Test a shell, and Cardo.] (Zoöl.)

Defn: A division of brachiopods including those which have a calcareous shell furnished with a hinge and hinge teeth. Terebratula and Spirifer are examples.

TESTICLE Tes"ti*cle, n. Etym: [L. testiculus, dim. of testis a testicle, probably the same word as testis a witness, as being a witness to manhood. Cf. Test a witness.] (Anat.)

Defn: One of the essential male genital glands which secrete the semen.

TESTICOND Tes"ti*cond, a. Etym: [L. testis testis + condere to hide.] (Zoöl.)

Defn: Having the testicles naturally concealed, as in the case of the cetaceans.

TESTICULAR Tes*tic"u*lar, a. (Anat.)

Defn: Of or pertaining to the testicle.

TESTICULATE Tes*tic"u*late, a. Etym: [NL. testiculatus.] (Bot.) (a) Shaped like a testicle, ovate and solid. (b) Having two tubers resembling testicles in form, as some species of orchis.

TESTIERE Tes`ti*ère", n. Etym: [OF. testiere. See Tester a headpiece.]

Defn: A piece of plate armor for the head of a war horse; a tester.

TESTIF Tes"tif, a. Etym: [See Testy.]

Defn: Testy; headstrong; obstinate. [Obs.] Testif they were and lusty for to play. Chaucer.

TESTIFICATION Tes`ti*fi*ca"tion, n. Etym: [L. testificatio: cf. OF. testification. See Testify.]

Defn: The act of testifying, or giving testimony or evidence; as, a direct testification of our homage to God. South.

TESTIFICATOR Tes"ti*fi*ca`tor, n. Etym: [NL.]

Defn: A testifier.

TESTIFIER Tes"ti*fi`er, n.

Defn: One who testifies; one who gives testimony, or bears witness to prove anything; a witness.

TESTIFY Tes"ti*fy, v. i. [imp. & p. p. Testified; p. pr. & vb. n. Testifying.] Etym: [OF. testifier, L. testificari; testis a witness + -ficare (in comp.) to make. See -fy, and cf. Attest, Contest, Detest, Protest, Testament.]

1. To make a solemn declaration, verbal or written, to establish some fact; to give testimony for the purpose of communicating to others a knowledge of something not known to them. Jesus . . . needed not that any should testify of man, for he knew what was in man. John ii. 25.

2. (Law)

Defn: To make a solemn declaration under oath or affirmation, for the purpose of establishing, or making proof of, some fact to a court; to give testimony in a cause depending before a tribunal. One witness shall not testify against any person to cause him to die. Num. xxxv. 30.

3. To declare a charge; to protest; to give information; to bear witness; — with against. O Israel, . . . I will testify against thee. Ps. l. 7. I testified against them in the day wherein they sold victuals. Neh. xiii. 15.

TESTIFY Tes"ti*fy, v. t.

1. To bear witness to; to support the truth of by testimony; to affirm or declare solemny. We speak that we do know, and testify that we have seen; and ye receive not our witness. John iii. 11.

2. (Law)

Defn: To affirm or declare under oath or affirmation before a tribunal, in order to prove some fact.

TESTIFY Tes"ti*fy, adv.

Defn: In a testy manner; fretfully; peevishly; with petulance.

TESTIMONIAL Tes`ti*mo"ni*al, n. Etym: [Cf. OF. testimoniale, LL. testimonialis, L. testimoniales (sc. litteræ). See Testimonial, a.]

1. A writing or certificate which bears testimony in favor of one's character, good conduct, ability, etc., or of the value of a thing.

2. Something, as money or plate, presented to a preson as a token of respect, or of obligation for services rendered.

TESTIMONIAL Tes`ti*mo"ni*al, a. Etym: [L. testimonialis: cf. F. testimonial.]

Defn: Relating to, or containing, testimony.

TESTIMONY Tes"ti*mo*ny, n.; pl. Testimonies. Etym: [L. testimonium, from testis a witness: cf. OF. testimoine, testemoine, testimonie. See Testify.]

1. A solemn declaration or affirmation made for the purpose of establishing or proving some fact.

Note: Such declaration, in judicial proceedings, may be verbal or written, but must be under oath or affirmation.

2. Affirmation; declaration; as, these doctrines are supported by the uniform testimony of the fathers; the belief of past facts must depend on the evidence of human testimony, or the testimony of historians.

3. Open attestation; profession. [Thou] for the testimony of truth, hast borne Universal reproach. Milton.

4. Witness; evidence; proof of some fact. When ye depart thence, shake off the dust under your feet for a testimony against them. Mark vi. 11.

5. (Jewish Antiq.)

Defn: The two tables of the law. Thou shalt put into the ark the testimony which I shall give thee. Ex. xxv. 16.

6. Hence, the whole divine revelation; the sacre The testimony of the Lord is sure, making wise the simple. Ps. xix. 7.

Syn. — Proof; evidence; attestation; witness; affirmation; confirmation; averment. — Testimony, Proof, Evidence. Proof is the most familiar, and is used more frequently (though not exclusively) of facts and things which occur in the ordinary concerns of life. Evidence is a word of more dignity, and is more generally applied to that which is moral or intellectual; as, the evidences of Christianity, etc. Testimony is what is deposed to by a witness on oath or affirmation. When used figuratively or in a wider sense, the word testimony has still a reference to some living agent as its author, as when we speak of the testimony of conscience, or of doing a thing in testimony of our affection, etc. Testimony refers rather to the thing declared, evidence to its value or effect. "To conform our language more to common use, we ought to divide arguments into demonstrations, proofs, and probabilities; ba proofs, meaning such arguments from experience as leave no room for doubt or opposition." Hume. "The evidence of sense is the first and highest kind of evidence of which human nature is capable." Bp. Wilkins. "The proof of everything must be by the testimony of such as the parties produce." Spenser.

TESTIMONY Tes"ti*mo*ny, v. t.

Defn: To witness; to attest; to prove by testimony. [Obs.] Shak.

TESTINESS Tes"ti*ness, n.

Defn: The quality or state of being testy; fretfulness; petulance. Testiness is a disposition or aptness to be angry. Locke.

TESTING Test"ing, n.

1. The act of testing or proving; trial; proof.

2. (Metal.)

Defn: The operation of refining gold or silver in a test, or cupel; cupellation. Testing machine (Engin.), a machine used in the determination of the strength of materials, as iron, stone, etc., and their behavior under strains of various kinds, as elongation, bending, crushing, etc.

TESTIS Tes"tis, n.; pl. Testes. Etym: [L.] (Anat.)

Defn: A testicle.

TESTON Tes"ton, n.

Defn: A tester; a sixpence. [Obs.]

TESTONE Tes*tone", n. Etym: [Cf. Pg. testao, tostao. See Testoon.]

Defn: A silver coin of Portugal, worth about sixpence sterling, or about eleven cents. Homans.

TESTOON Tes*toon", n. Etym: [It. testone. See Tester a coin.]

Defn: An Italian silver coin. The testoon of Rome is worth 1s. 3d. sterling, or about thirty cents. Homans.

TESTUDINAL Tes*tu"di*nal, a. Etym: [See Testudo.] (Zoöl.)

Defn: Of, pertaining to, or resembling, a tortoise.

TESTUDINARIOUS Tes*tu`di*na"ri*ous, a. (Zoöl.)

Defn: Of or pertaining to the shell of a tortoise; resembling a tortoise shell; having the color or markings of a tortoise shell.

TESTUDINATA Tes*tu`di*na"ta, n. pl. Etym: [Nl. See Testudo.] (Zoöl.)

Defn: An order of reptiles which includes the turtles and tortoises. The body is covered by a shell consisting of an upper or dorsal shell, called the carapace, and a lower or ventral shell, called the plastron, each of which consists of several plates.

TESTUDINATE; TESTUDINATED Tes*tu"di*nate, Tes*tu"di*na`ted, a. Etym: [L. testudinatus, fr. testudo, -inis, a tortoise, an arch or vault.]

Defn: Resembling a tortoise shell in appearance or structure; roofed; arched; vaulted.

TESTUDINEOUS Tes`tu*din"e*ous, a. Etym: [L. testudineus.]

Defn: Resembling the shell of a tortoise.

TESTUDO Tes*tu"do, n.; pl. Testudines. Etym: [L., from testa the shell of shellfish, or of testaceous animals.]

1. (Zoöl.)

Defn: A genus of tortoises which formerly included a large number of diverse forms, but is now restricted to certain terrestrial species, such as the European land tortoise (Testudo Græca) and the gopher of the Southern United States.

2. (Rom. Antiq.)

Defn: A cover or screen which a body of troops formed with their shields or targets, by holding them over their heads when standing close to each other. This cover resembled the back of a tortoise, and served to shelter the men from darts, stones, and other missiles. A similar defense was sometimes formed of boards, and moved on wheels.

3. (Mus.)

Defn: A kind of musical instrument. a species of lyre; — so called in allusion to the lyre of Mercury, fabled to have been made of the shell of a tortoise.

TESTY Tes"ty, a. [Compar. Testier; superl. Testiest.] Etym: [OF. testu obstinate, headstrong, F. têtu, fr. OF. teste the head, F. tête. See Test a cupel.]

Defn: Fretful; peevish; petulant; easily irritated. Must I observe you must I stand and crouch Under your testy humor Shak. I was displeased with myself; I was testy. Latimer.

TETANIC Te*tan"ic, a. Etym: [Cf. L. tetanicus suffering from tetanus, Gr. tétanique.]

1. (Physiol.)

Defn: Of or pertaining to tetanus; having the character of tetanus; as, a tetanic state; tetanic contraction. This condition of muscle, this fusion of a number of simple spasms into an apparently smooth, continuous effort, is known as tetanus, or tetanic contraction. Foster.

2. (Physiol. & Med.)

Defn: Producing, or tending to produce, tetanus, or tonic contraction of the muscles; as, a tetanic remedy. See Tetanic, n.

TETANIC Te*tan"ic, n. (Physiol. & Med.)

Defn: A substance (notably nux vomica, strychnine, and brucine) which, either as a remedy or a poison, acts primarily on the spinal cord, and which, when taken in comparatively large quantity, produces tetanic spasms or convulsions.

TETANIN Tet"a*nin, n. (Physiol. Chem.)

Defn: A poisonous base (ptomaine) formed in meat broth through the agency of a peculiar microbe from the wound of a person who has died of tetanus; — so called because it produces tetanus as one of its prominent effects.

TETANIZATION Tet`a*ni*za"tion, n. (Physiol.)

Defn: The production or condition of tetanus.

TETANIZE Tet"a*nize, v. t. (Physiol.)

Defn: To throw, as a muscle, into a state of permanent contraction; to cause tetanus in. See Tetanus, n., 2.

TETANOID Tet"a*noid, a. Etym: [Tetanus + -oid.] (Med. & Physiol.)

Defn: Resembling tetanus.

TETANOMOTOR Tet`a*no*mo"tor, n. (Physiol.)

Defn: An instrument from tetanizing a muscle by irritating its nerve by successive mechanical shocks.

TETANUS Tet"a*nus, n. Etym: [L., fr. Gr.

1. (Med.)

Defn: A painful and usually fatal disease, resulting generally from a wound, and having as its principal symptom persistent spasm of the voluntary muscles. When the muscles of the lower jaw are affected, it is called locked-jaw, or lickjaw, and it takes various names from the various incurvations of the body resulting from the spasm.

2. (Physiol.)

Defn: That condition of a muscle in which it is in a state of continued vibratory contraction, as when stimulated by a series of induction shocks.

TETANY Tet"a*ny, n. (Med.)

Defn: A morbid condition resembling tetanus, but distinguished from it by being less severe and having intermittent spasms.

TETARD Te*tard", n. (Zoöl.)

Defn: A gobioid fish (Eleotris gyrinus) of the Southern United States; — called also sleeper.

TETARTOHEDRAL Te*tar`to*he"dral, a. Etym: [Gr. (Crystallog.)

Defn: Having one fourth the number of planes which are requisite to complete symmetry. — Te*tar`to*he"dral*ly, adv.

TETARTOHEDRISM Te*tar`to*he"drism, n. (Crystallog.)

Defn: The property of being tetartohedral.

TETAUG Te*taug", n. (Zoöl.)

Defn: See Tautog. [R.]

TETCHINESS Tetch"i*ness, n.

Defn: See Techiness.

TETCHY Tetch"y, a.

Defn: See Techy. Shak.

TETE Tête, n. Etym: [F., the head. See Tester a covering.]

Defn: A kind of wig; false hair.

TETE-A-TETE Tête`-à-tête", n. Etym: [F., head to head. See Tester a covering, Test a cupel.]

1. Private conversation; familiar interview or conference of two persons.

2. A short sofa intended to accomodate two persons.

TETE-A-TETE Tête`-à-tête", a.

Defn: Private; confidential; familiar. She avoided tête-à-tête walks with him. C. Kingsley.

TETE-A-TETE Tête`-à-tête", adv.

Defn: Face to face; privately or confidentially; familiarly. Prior.

TETE-DE-PONT Tête`-de-pont", n.; pl. Têtes-de-pont. Etym: [F., head of a bridge.] (Mil.)

Defn: A work thrown up at the end of a bridge nearest the enemy, for covering the communications across a river; a bridgehead.

TETEL Te*tel", n. (Zoöl.)

Defn: A large African antelope (Alcejaphus tora). It has widely divergent, strongly ringed horns.

TETHER Teth"er, n. Etym: [Formerly tedder, OE. tedir; akin to LG. tider, tier, Icel. tjo, Dan. töir. *64.]

Defn: A long rope or chain by which an animal is fastened, as to a stake, so that it can range or feed only within certain limits.

TETHER Teth"er, v. t. [imp. & p. p. Tethered; p. pr. & vb. n. Tethering.]

Defn: To confine, as an animal, with a long rope or chain, as for feeding within certain limits. And by a slender cord was tethered to a stone. Wordsworth.

TETHER-BALL Teth"er-ball`, n.

Defn: A game played with rackets and a ball suspended by a string from an upright pole, the object of each side being to wrap the string around the pole by striking the ball in a direction opposite to the other.

TETHYDAN Te*thy"dan, n. Etym: [See Tethys.] (Zoöl.)

Defn: A tunicate.

TETHYODEA Te`thy*o"de*a, n. pl. Etym: [NL., fr. Tethys + Gr. (Zoöl.)

Defn: A division of Tunicata including the common attached ascidians, both simple and compound. Called also Tethioidea.

TETHYS Te"thys, n. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A genus of a large naked mollusks having a very large, broad, fringed cephalic disk, and branched dorsal gills. Some of the species become a foot long and are brilliantly colored.

TETRA- Tet"ra-. Etym: [Gr. Four.]

1. A combining form or prefix signifying four, as in tetrabasic, tetrapetalous.

2. (Chem.)

Defn: A combining form (also used adjectively) denoting four proportional or combining parts of the substance or ingredient denoted by the term to which it is prefixed, as in tetra-chloride, tetroxide.

TETRABASIC Tet`ra*bas"ic, a. Etym: [Tetra- + basic.] (Chem.)

Defn: Capable of neutralizing four molecules of a monacid base; having four hydrogen atoms capable of replacement by bases; quadribasic; — said of certain acids; thus, normal silicic acid, Si(OH)4, is a tetrabasic acid.

TETRABORIC Tet`ra*bor"ic, a. Etym: [Tetra- + boric.] (Chem.)

Defn: Same as Pyroboric.

TETRABRANCHIATA Tet`ra*bran`chi*a"ta, n. pl. Etym: [NL. See Tetra-, and Branchia.] (Zoöl.)

Defn: An order of Cephalopoda having four gills. Among living species it includes only the pearly nautilus. Numerous genera and species are found in the fossil state, such as Ammonites, Baculites, Orthoceras, etc.

TETRABRANCHIATE Tet`ra*bran`chi*ate, a. Etym: [Tetra + branchiate.] (Zoöl.)

Defn: Of or pertaining to the Tetrabranchiata. — n.

Defn: One of the Tetrabranchiata.

TETRACARPEL Tet`ra*car"pel, a. Etym: [Tetra- + carpellary.] (Bot.)

Defn: Composed of four carpels.

TETRACHORD Tet"ra*chord, n. Etym: [L. tetrachordon, Gr. Tetra-) + tétrachorde.] (Anc. Mus.)

Defn: A scale series of four sounds, of which the extremes, or first and last, constituted a fourth. These extremes were immutable; the two middle sounds were changeable.

TETRACHOTOMOUS Tet`ra*chot"o*mous, a. Etym: [Gr. (Bot.)

Defn: Having a division by fours; separated into four parts or series, or into series of fours.

TETRACID Tet*rac"id, a. Etym: [Tetra + acid.] (Chem.)

Defn: Capable of neutralizing four molecules of a monobasic acid; having four hydrogen atoms capable of replacement ba acids or acid atoms; — said of certain bases; thus, erythrine, C4H6(OH)4, is a tetracid alcohol.

TETRACOCCOUS Tet`ra*coc"cous, a. Etym: [See Tetra-, and Coccus.] (Bot.)

Defn: Having four cocci, or carpels.

TETRACOLON Tet`ra*co"lon, n. Etym: [Gr. Tetra-) + (Pros.)

Defn: A stanza or division in lyric poetry, consisting of four verses or lines. Crabb.

TETRACORALLA Te`tra*co*ral"la, n. pl. Etym: [NL. See Tetra-, and Corallum.] (Paleon.)

Defn: Same as Rugosa.

TETRACTINELLID Te*trac`ti*nel"lid, n. (Zoöl.)

Defn: Any species of sponge of the division Tetractinellida. Also used adjectively.

TETRACTINELLIDA Te*trac`ti*nel"li*da, n. pl. Etym: [NL., from Gr. (Zoöl.)

Defn: A division of Spongiæ in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellinæ.

TETRAD Tet"rad, n. Etym: [L. tetras, -adis, Gr. tétrade.]

1. The number four; a collection of four things; a quaternion.

2. (Chem.)

Defn: A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.

TETRADACTYL; TETRADACTYLE Tet`ra*dac"tyl, Tet`ra*dac"tyle, a. Etym: [Cf. F. tétradactyle.] (Zoöl.)

Defn: Tetradactylous.

TETRADACTYLOUS Tet`ra*dac"tyl*ous, a. Etym: [Gr. Tetra-) + (Zoöl.)

Defn: Having, or characterized by, four digits to the foot or hand.

TETRADECANE Tet`ra*dec"ane, n. Etym: [Tetra- + Gr. (Chem.)

Defn: A light oily hydrocarbon, C14H30, of the marsh-gas series; — so called from the fourteen carbon atoms in the molecule.

TETRADECAPODA Tet`ra*de*cap"o*da, n. pl. Etym: [NL. See Tetra-, and Decapoda.] (Zoöl.)

Defn: Same as Arthrostraca.

TETRADIC Tet*rad"ic, a. (Chem.)

Defn: Of or pertaining to a tetrad; possessing or having the characteristics of a tetrad; as, a carbon is a tetradic element.

TETRADITE Tet"ra*dite, n. Etym: [See Tetrad.]

Defn: A person in some way remarkable with regard to the number four, as one born on the fourth day of the month, or one who reverenced four persons in the Godhead. Smart.

TETRADON Tet"ra*don, n. (Zoöl.)

Defn: See Tetrodon.

TETRADONT Tet"ra*dont, a. & n. (Zoöl.)

Defn: See Tetrodont.

TETRADRACHM; TETRADRACHMA Tet"ra*drachm, Tet`ra*drach"ma, n. Etym: [NL. tetradrachma, fr. Gr. Tetra-) +

Defn: A silver coin among the ancient Greeks, of the value of four drachms. The Attic tetradrachm was equal to 3s. 3d. sterling, or about 76 cents.

TETRADYMITE Tet*rad"y*mite, n. Etym: [Gr. (Min.)

Defn: A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Calles also telluric bismuth.

TETRADYNAMIA Tet`ra*dy*na"mi*a, n. pl. Etym: [NL., fr. Gr. Tetra-) + (Bot.)

Defn: A Linnæan class of plants having six stamens, four of which are longer than the others.

TETRADYNAMIAN Tet`ra*dy*na"mi*an, n. (Bot.)

Defn: A plant of the order Tetradynamia.

TETRADYNAMIAN; TETRADYNAMOUS Tet`ra*dy*na"mi*an, Tet`ra*dyn"a*mous, a. (Bot.)

Defn: Belonging to the order Tetradynamia; having six stamens, four of which are uniformly longer than the others.

TETRAGON Tet"ra*gon, n. Etym: [L. tetragonum, Gr. Tetra-) + tétragone.]

1. (Geom.)

Defn: A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.

2. (Astrol.)

Defn: An aspect of two planets with regard to the earth when they are distant from each other ninety degrees, or the fourth of a circle. Hutton.

TETRAGONAL Te*trag"o*nal, a.

1. (Geom.)

Defn: Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal fingers.

2. (Bot.)

Defn: Having four prominent longitudinal angles.

3. (Crystallog.)

Defn: Designating, or belonging to, a certain system of crystallization; dimetric. See Tetragonal system, under Crystallization.

TETRAGRAMMATON Tet`ra*gram"ma*ton, n. Etym: [NL., fr. Gr. Tetra-) +

Defn: The mystic number four, which was often symbolized to represent the Deity, whose name was expressed by four letters among some ancient nations; as, the Hebrew JeHoVaH, Greek qeo`s, Latin deus, etc.

TETRAGYNIA Tet`ra*gyn"i*a, n. pl. Etym: [NL., fr. Gr. te`tra- (see Tetra-) + gynh` a woman, female.] (Bot.)

Defn: A Linnæan order of plants having four styles.

TETRAGYNIAN; TETRAGYNOUS Tet`ra*gyn"i*an, Te*trag"y*nous, a. (Bot.)

Defn: Belonging to the order Tetragynia; having four styles.

TETRAHEDRAL Tet`ra*he"dral, a. Etym: [See Tetrahedron.]

1. Having, or composed of, four sides.

2. (Crystallog.) (a) Having the form of the regular tetrahedron. (b) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. Tetrahedral angle (Geom.), a solid angle bounded or inclosed by four plane angles.

TETRAHEDRALLY Tet`ra*he"dral*ly, adv.

Defn: In a tetrahedral manner.

TETRAHEDRITE Tet`ra*he"drite, n. Etym: [So called because the crystals of the species are commonly tetrahedrons.] (Min.)

Defn: A sulphide of antimony and copper, with small quantities of other metals. It is a very common ore of copper, and some varieties yield a considerable presentage of silver. Called also gray copper ore, fahlore, and panabase.

TETRAHEDRON Tet`ra*he"dron, n. Etym: [Tetra- + Gr. (Geom.)

Defn: A solid figure inclosed or bounded by four triangles.

Note: In crystallography, the regular tetrahedron is regarded as the hemihedral form of the regular octahedron. Regular tetrahedron (Geom.), a solid bounded by four equal equilateral triangles; one of the five regular solids.

TETRAHEXAHEDRAL Tet`ra*hex`a*he"dral, a. (Crystallog.)

Defn: Pertaining to a tetrahexahedron.

TETRAHEXAHEDRON Tet`ra*hex`a*he"dron, n. Etym: [Tetra- + hexahedron.] (Crystallog.)

Defn: A solid in the isometric system, bounded by twenty-four equal triangular faces, four corresponding to each face of the cube.

TETRAKISHEXAHEDRON Tet`ra*kis*hex`a*he"dron, n. Etym: [Gr. hexahedron.] (Crystallog.)

Defn: A tetrahexahedron.

TETRAKOSANE Tet"ra*ko*sane`, n. Etym: [Tetra- + Gr. (Chem.)

Defn: A hydrocarbon, C24H50, resembling paraffin, and like it belonging to the marsh-gas series; — so called from having twenty- four atoms of carbon in the molecule.

TETRALOGY Te*tral"o*gy, n. Etym: [Gr. Tetra-) + tétralogie.] (Gr. Drama)

Defn: A group or series of four dramatic pieces, three tragedies and one satyric, or comic, piece (or sometimes four tragedies), represented consequently on the Attic stage at the Dionysiac festival.

Note: A group or series of three tragedies, exhibited together without a fourth piese, was called a trilogy.

TETRAMERA Te*tram"e*ra, n. pl. Etym: [NL. See Tetramerous.] (Zoöl.)

Defn: A division of Coleoptera having, apparently, only four tarsal joints, one joint being rudimentary.

TETRAMEROUS Te*tram"er*ous, a. Etym: [Tetra- + Gr.

1. (Bot.)

Defn: Having the parts arranged in sets of four; as, a tetramerous flower.

2. (Zoöl.)

Defn: Having four joints in each of the tarsi; — said of certain insects.

TETRAMETER Te*tram"e*ter, n. Etym: [L. tetrametrus, Gr. Tetra-) + tétramètre.] (GR. & Latin Pros.)

Defn: A verse or line consisting of four measures, that is, in iambic, trochaic, and anapestic verse, of eight feet; in other kinds of verse, of four feet.

TETRAMETHYLENE Tet`ra*meth"yl*ene, n. Etym: [Tetra- + methylene.] (Chem.) (a) A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives. (b) Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene.

TETRAMORPH Tet"ra*morph, n. Etym: [Tetra- + Gr. (Christian Art)

Defn: The union of the four attributes of the Evangelists in one figure, which is represented as winged, and standing on winged fiery wheels, the wings being covered with eyes. The representations of it are evidently suggested by the vision of Ezekiel (ch. i.)

TETRANDRIA Te*tran"dri*a, n. pl. Etym: [NL., from Gr. Tetra-) + (Bot.)

Defn: A Linnæan class of plants having four stamens.

TETRANDRIAN; TETRANDROUS Te*tran"dri*an, Te*tran"drous, a. (Bot.)

Defn: Belonging to the class Tetrandria.

TETRAONID Te*tra"o*nid, n. Etym: [L. tetrao a heath cock, grouse, Gr. tétraonide.] (Zoöl.)

Defn: A bird belonging to the tribe of which the genus Tetrao is the type, as the grouse, partridge, quail, and the like. Used also adjectively.

TETRAPETALOUS Tet`ra*pet"al*ous, a. Etym: [Tetra- + petal.] (Bot.)

Defn: Containing four distinct petals, or flower leaves; as, a tetrapetalous corolla.

TETRAPHARMACOM; TETRAPHARMACUM Tet`ra*phar"ma*com, Tet`ra*phar"ma*cum, n. Etym: [NL. tetrapharmacon, L. tetrapharmacum, Gr. Tetra-) + (Med.)

Defn: A combination of wax, resin, lard, and pitch, composing an ointment. Brande & C.

TETRAPHENOL Tet`ra*phe"nol, n. Etym: [Tetra- + phenol.] (Chem.)

Defn: Furfuran. [Obs.]

TETRAPHYLLOUS Te*traph"yl*lous, a. Etym: [Tetra- + Gr. (Bot.)

Defn: Having four leaves; consisting of four distinct leaves or leaflets.

TETRAPLA Tet"ra*pla, n.;

Note: etymologically pl., but syntactically sing. Etym: [NL., fr. Gr. tetraplo`os, tetraploy^s, fourfold.]

Defn: A Bible consisting of four different Greek versions arranged in four columns by Origen; hence, any version in four languages or four columns.

TETRAPNEUMONA Tet`ra*pneu"mo*na, n. pl. Etym: [NL. See Tetra-, and Pneumo-.] (Zoöl.)

Defn: A division of Arachnida including those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and the trapdoor spiders. See Mygale.

TETRAPNUEMONIAN Tet`rap*nue*mo"ni*an, n. (Zoöl.)

Defn: One of the Tetrapneumona.

TETRAPOD Tet"ra*pod, n. Etym: [Gr. Tetra-) + (Zoöl.)

Defn: An insect characterized by having but four perfect legs, as certain of the butterflies.

TETRAPODY Te*trap"o*dy, n. Etym: [Gr.

Defn: A set of four feet; a measure or distance of four feet.

TETRAPTERAN Te*trap"ter*an, n. Etym: [See Tetrapterous.] (Zoöl.)

Defn: An insect having four wings.

TETRAPTEROUS Te*trap"ter*ous, a. Etym: [Gr. Tetra-) + (Zoöl.)

Defn: Having four wings.

TETRAPTOTE Tet"rap*tote, n. Etym: [L. tetraptotum, Gr. (Gram.)

Defn: A noun that has four cases only. Andrews.

TETRARCH Te"trarch, n. Etym: [L. tetrarches, Gr. Tetra-) + tétrarque. See Arch, a.] (Rom. Antiq.)

Defn: A Roman governor of the fourth part of a province; hence, any subordinate or dependent prince; also, a petty king or sovereign.

TETRARCH Te"trarch, a.

Defn: Four. [Obs.] Fuller.

TETRARCHATE Te*trarch"ate, n. Etym: [Cf. F. tétrarchat.] (Rom. Antiq.)

Defn: A tetrarchy.

TETRARCHICAL Te*trarch"ic*al, a. Etym: [Gr.

Defn: Of or pertaining to a tetrarch or tetrarchy. Bolingbroke.

TETRARCHY Tet"rarch*y, n.; pl. Tetrarchies. Etym: [L. tetrarchia, Gr. tétrarchie.] (Rom. Antiq.)

Defn: The district under a Roman tetrarch; the office or jurisdiction of a tetrarch; a tetrarchate.

TETRASCHISTIC Tet`ra*schis"tic, a. Etym: [Gr. (Biol.)

Defn: Characterized by division into four parts.

TETRASEPALOUS Tet`ra*sep"al*ous, a. Etym: [Tetra- + sepal.] (Bot.)

Defn: Having four sepals.

TETRASPASTON Tet`ra*spas"ton, n. Etym: [NL., fr. Gr. Tetra-) + (Mach.)

Defn: A machine in which four pulleys act together. Brande & C.

TETRASPERMOUS Tet`ra*sper"mous, a. Etym: [Tetra- + Gr. (Bot.)

Defn: Having four seeds. Tetraspermous plant, a plant which produces four seeds in each flower.

TETRASPORE Tet"ra*spore, n. Etym: [Tetra- + spore.] (Bot.)

Defn: A nonsexual spore, one of a group of four regularly occurring in red seaweeds. — Tet`ra*spor"ic, a.

TETRASTICH Te*tras"tich, n. Etym: [L. tetrastichon, Gr. Tetra-) +

Defn: A stanza, epigram, or poem, consisting of four verses or lines. Pope.

TETRASTYLE Tet"ra*style, a. Etym: [L. tetrastylon, Gr. Tetra-) + (Arch.)

Defn: Having four columns in front; — said of a temple, portico, or colonnade. — n.

Defn: A tetrastyle building.

TETRASYLLABIC; TETRASYLLABICAL Tet`ra*syl*lab"ic, Tet`ra*syl*lab"ic*al, a. Etym: [Cf. F. tétrasyllabique.]

Defn: Consisting of, or having, four syllables; quadrisyllabic.

TETRASYLLABLE Tet"ra*syl`la*ble, n. Etym: [Tetra- + syllable: cf. Gr.

Defn: A word consisting of four syllables; a quadrisyllable.

TETRATHECAL Tet`ra*the"cal, a. Etym: [Tetra- + thecal.] (Bot.)

Defn: Having four loculaments, or thecæ.

TETRATHIONATE Tet`ra*thi"on*ate, n. (Chem.)

Defn: A salt of tetrathionic acid.

TETRATHIONIC Tet`ra*thi*on"ic, a. Etym: [Tetra- + thionic.] (Chem.)

Defn: Of, pertaining to, or designating, a thionic derivative, H

TETRATOMIC Tet`ra*tom"ic, a. Etym: [Tetra- + atomic.] (Chem.) (a) Consisting of four atoms; having four atoms in the molecule, as phosphorus and arsenic. (b) Having a valence of four; quadrivalent; tetravalent; sometimes, in a specific sense, having four hydroxyl groups, whether acid or basic.

TETRAVALENCE Te*trav"a*lence, n. (Chem.)

Defn: The quality or state of being tetravalent; quadrivalence.

TETRAVALENT Te*trav"a*lent, a. Etym: [Tetra- + L. valens, -entis, p.pr.] (Chem.)

Defn: Having a valence of four; tetratomic; quadrivalent.

TETRAXILE Te*trax"ile, a. Etym: [Tetra- + axile.] (Zoöl.)

Defn: Having four branches diverging at right angles; — said of certain spicules of sponges.

TETRAZINE; TETRAZIN Tet*raz"ine, n. Also -in. [Tetrazo- + -ine.] (Chem.)

Defn: A hypothetical compound, C2H2N4 which may be regarded as benzene with four CH groups replaced by nitrogen atoms; also, any of various derivatives of the same. There are three isomeric varieties.

TETRAZO- Tet*raz"o-, a. Etym: [Tetra- + azo-.] (Chem.)

Defn: A combining form (also used adjectively), designating any one of a series of double derivatives of the azo and diazo compounds containing four atoms of nitrogen.

TETRAZOLE Tet*raz"ole, n. [Tetrazo- + -ole.] (Org. Chem.)

Defn: A crystalline acid substance, CH2N4, which may be regarded as pyrrol in which nitrogen atoms replace three CH groups; also, any of various derivatives of the same.

TETRAZONE Tet"ra*zone, n. (Chem.)

Defn: Any one of a certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks.

TETRIC; TETRICAL Tet"ric, Tet"ri*cal, a. Etym: [L. tetricus, taetricus, from teter, taeter, offensive, foul.]

Defn: Forward; perverse; harsh; sour; rugged. [Obs.] — Tet"ric*al*ness, n.

TETRICITY Te*tric"i*ty, n. Etym: [L. tetricitas, taetricitas.]

Defn: Crabbedness; perverseness. [Obs.]

TETRICOUS Tet"ric*ous, a.

Defn: Tetric. [Obs.]

TETRINIC Te*trin"ic, a. Etym: [See Tetra-.] (Chem.)

Defn: Of, pertaining to, or designating, a complex ketonic acid, C5H6O3, obtained as a white crystalline substance; — so called because once supposed to contain a peculiar radical of four carbon atoms. Called also acetyl-acrylic acid.

TETRODON Tet"ro*don, n. Etym: [Tetra- + Gr. (Zoöl.)

Defn: Any one of numerous species of plectognath fishes belonging to Tetrodon and allied genera. Each jaw is furnished with two large, thick, beaklike, bony teeth. [Written also tetradon.]

Note: The skin is usually spinous, and the belly is capable of being greatly distended by air or water. It includes the swellfish, puffer (a), and similar species.

TETRODONT Tet"ro*dont, a. (Zoöl.)

Defn: Of or pertaining to the tetrodons. — n.

Defn: A tetrodon. [Written also tetradont, and tetraodont.]

TETROL Tet"rol, n. Etym: [Tetra- + benzol.] (Chem.)

Defn: A hypothetical hydrocarbon, C4H4, analogous to benzene; — so called from the four carbon atoms in the molecule. Tetrol phenol, furfuran. [Obs.]

TETROLIC Tet*rol"ic, a. (Chem.)

Defn: Of, pertaining to, or designating, an acid, C3H3.CO2H, of the acetylene series, homologous with propiolic acid, obtained as a white crystalline substance.

TETROSE Tet"rose, n. [Tetra- + -ose.] (Chem.)

Defn: A monosaccharide derived from a certain alcohol.

TETROXIDE Tet*rox"ide, n. Etym: [Tetra- + oxide.] (Chem.)

Defn: An oxide having four atoms of oxygen in the molecule; a quadroxide; as, osmium tetroxide, OsO.

TETRYL Tet"ryl, n. Etym: [Tetra- + -yl.] (Chem.)

Defn: Butyl; — so called from the four carbon atoms in the molecule.

TETRYLENE Tet"ryl*ene, n. Etym: [Tetra- + ethylene.] (Chem.)

Defn: Butylene; — so called from the four carbon atoms in the molecule.

TETTER Tet"ter, n. Etym: [OE. teter, AS. teter, tetr; akin to G. zitter, zittermal, OHG. zittaroch, Skr. dadru, dadruka, a sort of skin disease. *63, 240.] (Med.)

Defn: A vesicular disease of the skin; herpes. See Herpes. Honeycomb tetter (Med.), favus. — Moist tetter (Med.), eczema. — Scaly tetter (Med.), psoriasis. Tetter berry (Bot.), the white bryony.

TETTER Tet"ter, v. t. [imp. & p. p. Tettered; p. pr. & vb. n. Tettering.]

Defn: To affect with tetter. Shak.

TETTEROUS Tet"ter*ous, a.

Defn: Having the character of, or pertaining to, tetter.

TETTER-TOTTER Tet"ter-tot`ter, n. Etym: [See Teeter.]

Defn: A certain game of children; seesaw; — called also titter- totter, and titter-cum-totter.

TETTERWORT Tet"ter*wort`, n. (Bot.)

Defn: A plant used as a remedy for tetter, — in England the calendine, in America the bloodroot.

TETTIGONIAN Tet`ti*go"ni*an, n. Etym: [Gr. (Zoöl.)

Defn: Any one of numerous species of Hemiptera belonging to Tettigonia and allied genera; a leaf hopper.

TETTISH Tet"tish, a. Etym: [Cf. Testy.]

Defn: Captious; testy. [Written also teatish.] [Obs.] Beau. & Fl.

TETTIX Tet"tix, n. Etym: [NL., fr. Gr.

1. (Zoöl.)

Defn: The cicada. [Obs. or R.]

2. (Zoöl.)

Defn: A genus of small grasshoppers.

TETTY Tet"ty, a.

Defn: Testy; irritable. [Obs.] Burton.

TEUFIT Teu"fit, n. (Zoöl.)

Defn: The lapwing; — called also teuchit. [Prov. Eng.]

TEUK Teuk, n. (Zoöl.)

Defn: The redshank. [Prov. Eng.]

TEUTON Teu"ton, n.; pl. E. Teutons, L. Teutones. Etym: [L. Teutones, Teutoni, the name of a Germanic people, probably akin to E. Dutch. Cf. Dutch.]

1. One of an ancient German tribe; later, a name applied to any member of the Germanic race in Europe; now used to designate a German, Dutchman, Scandinavian, etc., in distinction from a Celt or one of a Latin race.

2. A member of the Teutonic branch of the Indo-European, or Aryan, family.

TEUTONIC Teu*ton"ic, a. Etym: [L. Teutonicus, from Teutoni, or Teutones. See Teuton.]

1. Of or pertaining to the Teutons, esp. the ancient Teutons; Germanic.

2. Of or pertaining to any of the Teutonic languages, or the peoples who speak these languages. Teutonic languages, a group of languages forming a division of the Indo-European, or Aryan, family, and embracing the High German, Low German, Gothic, and Scandinavian dialects and languages. — Teutonic order, a military religious order of knights, established toward the close of the twelfth century, in imitation of the Templars and Hospitalers, and composed chiefly of Teutons, or Germans. The order rapidly increased in numbers and strength till it became master of all Prussia, Livonia, and Pomerania. In its decay it was abolished by Napoleon; but it has been revived as an honorary order.

TEUTONIC Teu*ton"ic, n.

Defn: The language of the ancient Germans; the Teutonic languages, collectively.

TEUTONICISM Teu*ton"i*cism, n.

Defn: A mode of speech peculiar to the Teutons; a Teutonic idiom, phrase, or expression; a Teutonic mode or custom; a Germanism.

TEW Tew, v. t. [imp. & p. p. Tewed; p. pr. & vb. n. Tewing.] Etym: [OE. tewen, tawen. *64. See Taw, v.]

1. To prepare by beating or working, as leather or hemp; to taw.

2. Hence, to beat; to scourge; also, to pull about; to maul; to tease; to vex. [Obs. or Prov. Eng. & Scot.]

TEW Tew, v. i.

Defn: To work hard; to strive; to fuse. [Local]

TEW Tew, v. t. Etym: [Cf. Taw to tow, Tow, v. t.]

Defn: To tow along, as a vessel. [Obs.] Drayton.

TEW Tew, n.

Defn: A rope or chain for towing a boat; also, a cord; a string. [Obs. or Prov. Eng.]

TEWAN Te"wan, n. (Ethnol.)

Defn: A tribe of American Indians including many of the Pueblos of New Mexico and adjacent regions.

TEWED Tewed, a.

Defn: Fatigued; worn with labor or hardship. [Obs. or Local] Mir. for Mag.

TEWEL Tew"el, n. Etym: [OE. tuel, OF. tuiel, tuel, F. tuyau; of Teutonic origin; cf. Dan. tud, D. tuit, Prov. G. zaute. Cf. Tuyère.]

1. A pipe, funnel, or chimney, as for smoke. Chaucer.

2. The tuyère of a furnace.

TEWHIT Te"whit, n. (Zoöl.)

Defn: The lapwing; — called also teewheep. [Prov. Eng.]

TEWTAW Tew"taw, v. t. Etym: [See Tew, v. t.]

Defn: To beat; to break, as flax or hemp. [Obs.] Mortimer.

TEXAS Tex"as, n.

Defn: A structure on the hurricane deck of a steamer, containing the pilot house, officers' cabins, etc. [Western U.S.] Knight.

TEXAS LEAGUER Tex"as Leagu"er. [From the Texas (baseball) League.] (Baseball)

Defn: A short fly that falls too far out to be handled by an infielder and too close in to be caught by an outfielder. [Cant]

TEXT Text, n. Etym: [F. texte, L. textus, texture, structure, context, fr. texere, textum, to weave, construct, compose; cf. Gr. taksh to cut, carve, make. Cf. Context, Mantle, n., Pretext, Tissue, Toil a snare.]

1. A discourse or composition on which a note or commentary is written; the original words of an author, in distinction from a paraphrase, annotation, or commentary. Chaucer.

2. (O. Eng. Law)

Defn: The four Gospels, by way of distinction or eminence. [R.]

3. A verse or passage of Scripture, especially one chosen as the subject of a sermon, or in proof of a doctrine. How oft, when Paul has served us with a text, Has Epictetus, Plato, Tully, preached! Cowper.

4. Hence, anything chosen as the subject of an argument, literary composition, or the like; topic; theme.

5. A style of writing in large characters; text-hand also, a kind of type used in printing; as, German text. Text blindness. (Physiol.) See Word blindness, under Word. — Text letter, a large or capital letter. [Obs.] — Text pen, a kind of metallic pen used in engrossing, or in writing text-hand.

TEXT Text, v. t.

Defn: To write in large characters, as in text hand. [Obs.] Beau. & Fl.

TEXT-BOOK Text"-book`, n.

1. A book with wide spaces between the lines, to give room for notes.

2. A volume, as of some classical author, on which a teacher lectures or comments; hence, any manual of instruction; a schoolbook.

TEXT-HAND Text"-hand`, n.

Defn: A large hand in writing; — so called because it was the practice to write the text of a book in a large hand and the notes in a smaller hand.

TEXT HAND Text hand.

Defn: A large hand in writing; — so called because it was the practice to write the text of a book in a large hand and the notes in a smaller hand.

TEXTILE Tex"tile, a. Etym: [L. textilis, fr. texere to weave: cf. F. textile. See Text.]

Defn: Pertaining to weaving or to woven fabrics; as, textile arts; woven, capable of being woven; formed by weaving; as, textile fabrics. Textile cone (Zoöl.), a beautiful cone shell (Conus textilis) in which the colors are arranged so that they resemble certain kinds of cloth.

TEXTILE Tex"tile, n.

Defn: That which is, or may be, woven; a fabric made by weaving. Bacon.

TEXTMAN Text"man, n.; pl. Textmen (.

Defn: One ready in quoting texts. [R.] Bp. Sanderston.

TEXTORIAL Tex*to"ri*al, a. Etym: [L. textorius, fr. textor a weaver, fr. texere, textum, to weave.]

Defn: Of or pertaining to weaving. T. Warton.

TEXTRINE Tex"trine, a. Etym: [L. textrinus, for textorinus, fr. textor a weaver.]

Defn: Of or pertaining to weaving, textorial; as, the textrine art. Denham.

TEXTUAL Tex"tu*al, a. Etym: [OE. textuel, F. textuel.]

1. Of, pertaining to, or contained in, the text; as, textual criticism; a textual reading. Milton.

2. Serving for, or depending on, texts. Bp. Hall.

3. Familiar with texts or authorities so as to cite them accurately. "I am not textuel." Chaucer.

TEXTUALIST Tex"tu*al*ist, n.

Defn: A textman; a textuary. Lightfoot.

TEXTUALLY Tex"tu*al*ly, adv.

Defn: In a textual manner; in the text or body of a work; in accordance with the text.

TEXTUARIST Tex"tu*a*rist, n.

Defn: A textuary. [R.]

TEXTUARY Tex"tu*a*ry, a. Etym: [Cf. F. textuaire.]

1. Contained in the text; textual. Sir T. Browne.

2. Serving as a text; authoritative. Glanvill.

TEXTUARY Tex"tu*a*ry, n. Etym: [Cf. F. textuaire.]

1. One who is well versed in the Scriptures; a textman. Bp. Bull.

2. One who adheres strictly or rigidly to the text.

TEXTUEL Tex"tu*el, a.

Defn: Textual. [Obs.] Chaucer.

TEXTUIST Tex"tu*ist, n.

Defn: A textualist; a textman. [Obs.] The crabbed textualists of his time. Milton.

TEXTURAL Tex"tur*al, a.

Defn: Of or pertaining to texture.

TEXTURE Tex"ture, n. Etym: [L. textura, fr. texere, textum, to weave: cf. F. texture. See Text.]

1. The act or art of weaving. [R.] Sir T. Browne.

2. That which woven; a woven fabric; a web. Milton. Others, apart far in the grassy dale, Or roughening waste, their humble texture weave. Thomson.

3. The disposition or connection of threads, filaments, or other slender bodies, interwoven; as, the texture of cloth or of a spider's web.

4. The disposition of the several parts of any body in connection with each other, or the manner in which the constituent parts are united; structure; as, the texture of earthy substances or minerals; the texture of a plant or a bone; the texture of paper; a loose or compact texture.

5. (Biol.)

Defn: A tissue. See Tissue.

TEXTURE Tex"ture, v. t. [imp. & p. p. Textured; p. pr. & vb. n. Texturing.]

Defn: To form a texture of or with; to interweave. [R.]

TEXTURY Tex"tur*y, n.

Defn: The art or process of weaving; texture. [Obs.] Sir T. Browne.

TEYNE Teyne, n. Etym: [See Tain.]

Defn: A thin plate of metal. [Obs.] "A teyne of silver." Chaucer.

TH Th.

Defn: In Old English, the article the, when the following word began with a vowel, was often written with elision as if a part of the word. Thus in Chaucer, the forms thabsence, tharray, thegle, thend, thingot, etc., are found for the absence, the array, the eagle, the end, etc.

THACK; THACKER Thack, Thack"er.

Defn: See Thatch, Thatcher. [Obs. or Prov. Eng. & Scot.]

THAK Thak, v. t.

Defn: To thwack. [Obs.] Chaucer.

THALAMENCEPHALON Thal`a*men*ceph"a*lon, n. Etym: [NL. See Thalamus, and Encephalon.] (Anat.)

Defn: The segment of the brain next in front of the midbrain, including the thalami, pineal gland, and pituitary body; the diencephalon; the interbrain.

THALAMIC Tha*lam"ic, a. (Anat.)

Defn: Of or pertaining to a thalamus or to thalami.

THALAMIFLORAL; THALAMIFLOROUS Thal`a*mi*flo"ral, Thal`a*mi*flo"rous, a. Etym: [See Thalamus, and Floral.] (Bot.)

Defn: Bearing the stamens directly on the receptacle; — said of a subclass of polypetalous dicotyledonous plants in the system of De Candolle.

THALAMOCOELE Thal"a*mo*coele`, n. Etym: [Thalamic + Cg. (Anat.)

Defn: The cavity or ventricle of the thalamencephalon; the third ventricle.

THALAMOPHORA Thal`a*moph"o*ra, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: Same as Foraminifera.

THALAMUS Thal"a*mus, n.; pl. Thalami. Etym: [L. thalamus chamber, Gr.

1. (Anat.)

Defn: A mass of nervous matter on either side of the third ventricle of the brain; — called also optic thalamus.

2. (Bot.) (a) Same as Thallus. (b) The receptacle of a flower; a torus.

THALASSIAN Tha*las"si*an, n. Etym: [From Gr. (Zoöl.)

Defn: Any sea tortoise.

THALASSIC Tha*las"sic, a. Etym: [Gr. (Geol.)

Defn: Of or pertaining to the sea; — sometimes applied to rocks formed from sediments deposited upon the sea bottom.

THALASSINIAN Thal`as*sin"i*an, n. (Zoöl.)

Defn: Any species of Thalaassinidæ, a family of burrowing macrurous Crustacea, having a long and soft abdomen.

THALASSOGRAPHY Thal`as*sog"ra*phy, n. Etym: [Gr. -graphy.]

Defn: The study or science of the life of marine organisms. Agassiz.

THALER Tha"ler, n. Etym: [G. See Dollar.]

Defn: A German silver coin worth about three shillings sterling, or about 73 cents.

THALIA Tha*li"a, n. Etym: [L., fr. Gr. (Class. Myth.) (a) That one of the nine Muses who presided over comedy. (b) One of the three Graces. (c) One of the Nereids.

THALIACEA Tha`li*a"ce*a, n. pl. Etym: [NL. See Thalia.] (Zoöl.)

Defn: A division of Tunicata comprising the free-swimming species, such as Salpa and Doliolum.

THALIAN Tha*li"an, a.

Defn: Of or pertaining to Thalia; hence, of or pertaining to comedy; comic.

THALLATE Thal"late, n. (Chem.)

Defn: A salt of a hypothetical thallic acid.

THALLENE Thal"lene, n. (Chem.)

Defn: A hydrocarbon obtained from coal-tar residues, and remarkable for its intense yellowish green fluorescence.

THALLIC Thal"lic, a. (Chem.)

Defn: Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a higher valence as contrasted with the thallous compounds; as, thallic oxide.

THALLINE Thal"line, a. (Bot.)

Defn: Consisting of a thallus.

THALLINE Thal"line, n. Etym: [Gr. (Chem.)

Defn: An artificial alkaloid of the quinoline series, obtained as a white crystalline substance, C10H13NO, whose salts are valuable as antipyretics; — so called from the green color produced in its solution by certain oxidizing agents.

THALLIOUS Thal"li*ous, a. (Chem.)

Defn: See Thallous.

THALLIUM Thal"li*um, n. Etym: [NL., fr. Gr. green line in its spectrum.] (Chem.)

Defn: A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7.

THALLOGEN Thal"lo*gen, n. Etym: [Gr. -gen.] (Bot.)

Defn: One of a large class or division of the vegetable kingdom, which includes those flowerless plants, such as fungi, algæ, and lichens, that consist of a thallus only, composed of cellular tissue, or of a congeries of cells, or even of separate cells, and never show a distinction into root, stem, and leaf.

THALLOID Thal"loid, a. Etym: [Thallus + -oid.] (Bot.)

Defn: Resembling, or consisting of, thallus.

THALLOPHYTA Thal*loph"y*ta, n. pl. [NL. See Thallophyte.] (Bot.)

Defn: A phylum of plants of very diverse habit and structure, including the algæ, fungi, and lichens. The simpler forms, as many blue-green algæ, yeasts, etc., are unicellular and reproduce vegetatively or by means of asexual spores; in the higher forms the plant body is a thallus, which may be filamentous or may consist of plates of cells; it is commonly undifferentiated into stem, leaves, and roots, and shows no distinct tissue systems; the fronds of many algæ, however, are modified to serve many of the functions of the above-named organs. Both asexual and sexual reproduction, often of a complex type, occur in these forms. The Thallophyta exist almost exclusively as gametophytes, the sporophyte being absent or rudimentary. By those who do not separate the Myxophyta from the Tallophyta as a distinct phylum the latter is treated as the lowermost group in the vegetable kingdom.

THALLOPHYTE Thal"lo*phyte, n. Etym: [Gr. (Bot.)

Defn: Same as Thallogen.

THALLOUS Thal"lous, a. (Chem.)

Defn: Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a lower valence as contrasted with the thallic compounds. [Written also thallious.]

THALLUS Thal"lus, n.; pl. Thalli. Etym: [NL., fr. Gr. (Bot.)

Defn: A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.

THALWEG Thal"weg`, n. [G., fr. thal valley + weg way. See Dale; Way.] (Physiography) (a) A line following the lowest part of a valley, whether under water or not. (b) The line of continuous maximum descent from any point on a land surface, or that cutting all contours and angles.

THAMMUZ; TAMMUZ Tham"muz, Tam"muz, n. Etym: [Heb. thammuz.]

1. A deity among the ancient Syrians, in honor of whom the Hebrew idolatresses held an annual lamentation. This deity has been conjectured to be the same with the Phoenician Adon, or Adonis. Milton.

2. The fourth month of the Jewish ecclesiastical year, — supposed to correspond nearly with our month of July.

THAMNOPHILE Tham"no*phile, n. Etym: [Gr. qa`mnos a bush + fi`los loving.] (Zoöl.)

Defn: A bush shrike.

THAMYN Tha"myn, n. (Zoöl.)

Defn: An Asiatic deer (Rucervus Eldi) resembling the swamp deer; — called also Eld's deer.

THAN Than, conj. Etym: [OE. than, thon, then, thanne, thonne, thenne, than, then, AS. thanne, thonne, th\'91nne; akin to D. dan, OHG. danne, G. dann then, denn than, for, Goth. Þan then, and to E. the, there, that. See That, and cf. Then.]

Defn: A particle expressing comparison, used after certain adjectives and adverbs which express comparison or diversity, as more, better, other, otherwise, and the like. It is usually followed by the object compared in the nominative case. Sometimes, however, the object compared is placed in the objective case, and than is then considered by some grammarians as a preposition. Sometimes the object is expressed in a sentence, usually introduced by that; as, I would rather suffer than that you should want. Behold, a greater than Solomon is here. Matt. xii. 42. Which when Beelzebub perceived, than whom, Satan except, none higher sat. Milton. It's wiser being good than bad; It's safer being meek than fierce; It's fitter being sane than mad. R. Browning.

THAN Than, adv.

Defn: Then. See Then. [Obs.] Gower. Thanne longen folk to gon on pilgrimages. Chaucer.

THANA Tha"na (tä"nä), n. [Written also tana, tanna.] [Hind. thana.]

Defn: A police station. [India] Kipling.

THANAGE Than"age, n.

Defn: The district in which a thane anciently had jurisdiction; thanedom.

THANATOID Than"a*toid, a. Etym: [Gr. -oid.]

Defn: Deathlike; resembling death. Dunglison.

THANATOLOGY Than`a*tol"o*gy, n. Etym: [Gr. -logy.]

Defn: A description, or the doctrine, of death. Dunglison.

THANATOPSIS Than`a*top"sis, n. Etym: [NL., fr. Gr.

Defn: A view of death; a meditation on the subject of death. Bryant.

THANE Thane, n. Etym: [OE. thein, Þein, AS. Þegen, Þegn; akin to OHG. degan a follower, warrior, boy, MHG. degen a hero, G. degen hero, soldier, Icel. Þegn a thane, a freeman; probably akin to Gr. Þius servant, AS. Þeón, G. dienen to serve.]

Defn: A dignitary under the Anglo-Saxons and Danes in England. Of these there were two orders, the king's thanes, who attended the kings in their courts and held lands immediately of them, and the ordinary thanes, who were lords of manors and who had particular jurisdiction within their limits. After the Conquest, this title was disused, and baron took its place.

Note: Among the ancient Scots, thane was a title of honor, which seems gradually to have declined in its significance. Jamieson.

THANEDOM Thane"dom, n.

Defn: The property or jurisdiction of a thane; thanage. Sir W. Scott.

THANEHOOD Thane"hood, n.

Defn: The character or dignity of a thane; also, thanes, collectively. J. R. Green.

THANESHIP Thane"ship, n.

Defn: The state or dignity of a thane; thanehood; also, the seignioralty of a thane.

THANK Thank, n.; pl. Thanks. Etym: [AS. Þanc, Þonc, thanks, favor, thought; akin to OS. thank favor, pleasure, thanks, D. & G. dank thanks, Icel. Þ\'94kk, Dan. tak, Sw. tack, Goth. Þagks thanks; — originally, a thought, a thinking. See Think.]

Defn: A expression of gratitude; an acknowledgment expressive of a sense of favor or kindness received; obligation, claim, or desert, or gratitude; — now generally used in the plural. "This ceremonial thanks." Massinger. If ye do good to them which do good to you, what thank have ye for sinners also do even the same. Luke vi. 33. What great thank, then, if any man, reputed wise and constant, will neither do, nor permit others under his charge to do, that which he approves not, especially in matter of sin Milton. Thanks, thanks to thee, most worthy friend, For the lesson thou hast taught. Longfellow. His thanks, Her thanks, etc., of his or her own accord; with his or her good will; voluntary. [Obs.] Full sooth is said that love ne lordship, Will not, his thanks, have no fellowship. Chaucer. — In thank, with thanks or thankfulness. [Obs.] — Thank offering, an offering made as an expression of thanks.

THANK Thank, v. t. [imp. & p. p. Thanked; p. pr. & vb. n. Thanking.] Etym: [AS. Þancian. See Thank, n.]

Defn: To express gratitude to (anyone) for a favor; to make acknowledgments to (anyone) for kindness bestowed; — used also ironically for blame. "Graunt mercy, lord, that thank I you," quod she. Chaucer. I thank thee for thine honest care. Shak. Weigh the danger with the doubtful bliss, And thank yourself if aught should fall amiss. Dryden.

THANKFUL Thank"ful, a. Etym: [AS. Þancfull.]

1. Obtaining or deserving thanks; thankworthy. [R.] Ladies, look here; this is the thankful glass That mends the looker's eyes; this is the well That washes what it shows. Herbert.

2. Impressed with a sense of kindness received, and ready to acknowledge it; grateful. Be thankful unto him, and bless his name. Ps. c. 4. — Thank"ful*ly, adv. — Thank"ful*ness, n.

THANKLESS Thank"less, a.

1. Not acknowledging favors; not expressing thankfulness; unthankful; ungrateful. That she may feel How sharper than a serpent's tooth it is To have a thankless child! Shak.

2. Not obtaining or deserving thanks; unacceptable; as, a thankless task. To shepherd thankless, but by thieves that love the night allowed. Chapman. — Thank"less*ly, adv. — Thank"less*ness, n.

THANKLY Thank"ly, adv.

Defn: Thankfully. [Obs.] Sylvester (Du Bartas).

THANKSGIVE Thanks"give, v. t.

Defn: To give or dedicate in token of thanks. [Obs. or R.] Mede.

THANKSGIVER Thanks"giv`er, n.

Defn: One who gives thanks, or acknowledges a kindness. Barrow.

THANKSGIVING Thanks"giv`ing, n.

1. The act of rending thanks, or expressing gratitude for favors or mercies. Every creature of God is good, and nothing to be refused, if it be received with thanksgiving. 1 Tim. iv. 4. In the thanksgiving before meat. Shak. And taught by thee the Church prolongs Her hymns of high thanksgiving still. Keble.

2. A public acknowledgment or celebration of divine goodness; also, a day set apart for religious services, specially to acknowledge the goodness of God, either in any remarkable deliverance from calamities or danger, or in the ordinary dispensation of his bounties.

Note: In the United States it is now customary for the President by proclamation to appoint annually a day (usually the last Thursday in November) of thanksgiving and praise to God for the mercies of the past year. This is an extension of the custom long prevailing in several States in which an annual Thanksgiving day has been appointed by proclamation of the governor.

THANKWORTHINESS Thank"wor`thi*ness, n.

Defn: The quality or state of being thankworthy.

THANKWORTHY Thank"wor`thy, a.

Defn: Deserving thanks; worthy of gratitude; mreitorious. For this thankworthy, if a man, for conscience toward God, endure grief, suffering wrongfully. 1 Pet. ii. 19.

THAR Thar, n. (Zoöl.)

Defn: A goatlike animal (Capra Jemlaica) native of the Himalayas. It has small, flattened horns, curved directly backward. The hair of the neck, shoulders, and chest of the male is very long, reaching to the knees. Called also serow, and imo. [Written also thaar, and tahr.]

THAR Thar, v. impersonal, pres. Etym: [OE. thar, Þarf, AS. Þearf, infin. Þurfan to need; akin to OHG. durfan, G. dürfen to be allowed, Icel. Þurfa to need, Goth. Þaúrban.]

Defn: It needs; need. [Obs.] Piers Plowman. What thar thee reck or care Chaucer.

THARMS Tharms, n. pl. Etym: [AS. Þearm a gut; akin to D. & G. darm, Icel. Þarmr, Sw. & Dan. tarm. *53.]

Defn: Twisted guts. [Obs. or Prov. Eng.] Ascham.

THAROS Tha"ros, n. (Zoöl.)

Defn: A small American butterfly (Phycoides tharos) having the upper surface of the wings variegated with orange and black, the outer margins black with small white crescents; — called also pearl crescent.

THAT That, pron., a., conj., & adv. Etym: [AS. th\'91t, neuter nom. & acc. sing. of the article (originally a demonstrative pronoun). The nom. masc. se, and the nom. fem. seó are from a different root. AS. th\'91t is akin to D. dat, G. das, OHG. daz, Sw. & Dan. det, Icel. Þat (masc. sa, fem. so), Goth. Þata (masc. sa, fem. so), Gr. tat (for tad, masc. sas, fem. sa); cf. L. istud that. *184. Cf. The, Their, They, Them, This, Than, Since.]

1. As a demonstrative pronoun (pl. Those), that usually points out, or refers to, a person or thing previously mentioned, or supposed to be understood. That, as a demonstrative, may precede the noun to which it refers; as, that which he has said is true; those in the basket are good apples. The early fame of Gratian was equal to that of the most celebrated princes. Gibbon.

Note: That may refer to an entire sentence or paragraph, and not merely to a word. It usually follows, but sometimes precedes, the sentence referred to. That be far from thee, to do after this manner, to slay the righteous with the wicked. Gen. xviii. 25. And when Moses heard that, he was content. Lev. x. 20. I will know your business, Harry, that I will. Shak.

Note: That is often used in opposition to this, or by way of distinction, and in such cases this, like the Latin hic and French ceci, generally refers to that which is nearer, and that, like Latin ille and French cela, to that which is more remote. When they refer to foreign words or phrases, this generally refers to the latter, and that to the former. Two principles in human nature reign; Self-love, to urge, and Reason, to restrain; Nor this a good, nor that a bad we call. Pope. If the Lord will, we shall live, and do this or that. James iv. 16.

2. As an adjective, that has the same demonstrative force as the pronoun, but is followed by a noun. It shall be more tolerable for Sodom and Gomorrah in the day of judgment, than for that city. Matt. x. 15. The woman was made whole from that hour. Matt. ix. 22.

Note: That was formerly sometimes used with the force of the article the, especially in the phrases that one, that other, which were subsequently corrupted into th'tone, th'tother (now written t'other). Upon a day out riden knightes two . . . That one of them came home, that other not. Chaucer.

3. As a relative pronoun, that is equivalent to who or which, serving to point out, and make definite, a person or thing spoken of, or alluded to, before, and may be either singular or plural. He that reproveth a scorner getteth to himself shame. Prov. ix. 7. A judgment that is equal and impartial must incline to the greater probabilities. Bp. Wilkins.

Note: If the relative clause simply conveys an additional idea, and is not properly explanatory or restrictive, who or which (rarely that) is employed; as, the king that (or who) rules well is generally popular; Victoria, who (not that) rules well, enjoys the confidence of her subjects. Ambiguity may in some cases be avoided in the use of that (which is restrictive) instead of who or which, likely to be understood in a coördinating sense. Bain. That was formerly used for that which, as what is now; but such use is now archaic. We speak that we do know, and testify that we have seen. John iii. 11. That I have done it is thyself to wite [blame]. Chaucer. That, as a relative pronoun, cannot be governed by a preposition preceding it, but may be governed by one at the end of the sentence which it commences. The ship that somebody was sailing in. Sir W. Scott. In Old English, that was often used with the demonstratives he, his, him, etc., and the two together had the force of a relative pronoun; thus, that he = who; that his = whose; that him = whom. I saw to-day a corpse yborn to church That now on Monday last I saw him wirche [work]. Chaucer. Formerly, that was used, where we now commonly use which, as a relative pronoun with the demonstrative pronoun that as its antecedent. That that dieth, let it die; and that that is to cut off, let it be cut off. Zech. xi. 9.

4. As a conjunction, that retains much of its force as a demonstrative pronoun. It is used, specifically: — (a) To introduce a clause employed as the object of the preceding verb, or as the subject or predicate nominative of a verb. She tells them 't is a causeless fantasy, And childish error, that they are afraid. Shak. I have shewed before, that a mere possibility to the contrary, can by no means hinder a thing from being highly credible. Bp. Wilkins.

(b) To introduce, a reason or cause; — equivalent to for that, in that, for the reason that, because. He does hear me; And that he does, I weep. Shak.

(c) To introduce a purpose; — usually followed by may, or might, and frequently preceded by so, in order, to the end, etc. These things I say, that ye might be saved. John v. 34. To the end that he may prolong his days. Deut. xvii. 20.

(d) To introduce a consequence, result, or effect; — usually preceded by so or such, sometimes by that. The birds their notes renew, and bleating herds Attest their joy, that hill and valley rings. Milton. He gazed so long That both his eyes were dazzled. Tennyson. (e) To introduce a clause denoting time; — equivalent to in which time, at which time, when. So wept Duessa until eventide, That shining lamps in Jove's high course were lit. Spenser. Is not this the day That Hermia should give answer of her choice Shak.

(f) In an elliptical sentence to introduce a dependent sentence expressing a wish, or a cause of surprise, indignation, or the like. Ha, cousin Silence, that thou hadst seen that that this knight and I have seen! Shak. O God, that right should thus overcome might! Shak.

Note: That was formerly added to other conjunctions or to adverbs to make them emphatic. To try if that our own be ours or no. Shak. That is sometimes used to connect a clause with a preceding conjunction on which it depends. When he had carried Rome and that we looked For no less spoil than glory. Shak.

5. As adverb: To such a degree; so; as, he was that frightened he could say nothing. [Archaic or in illiteral use.] All that, everything of that kind; all that sort. With singing, laughing, ogling, and all that. Pope. The rank is but the guinea's stamp, The man's the gowd [gold] for a'that. Burns. — For that. See under For, prep. — In that. See under In, prep.

THATCH Thatch, n. Etym: [OE. thak, AS. Þ\'91c a roof; akin to Þeccean to cover, D. dak a roof, dekken to cover, G. dach a roof, decken 8cover, Icel. Þak a roof, Sw. tak, Dan. tag, Lith. stogas, Ir. teagh a house, Gael. teach, tigh, W. ty, L. tegere to cover, toga a toga, Gr. sthag. Cf. Deck, Integument, Tile, Toga.]

1. Straw, rushes, or the like, used for making or covering the roofs of buildings, or of stacks of hay or grain.

2. (Bot.)

Defn: A name in the West Indies for several kinds of palm, the leaves of which are used for thatching. Thatch sparrow, the house sparrow. [Prov. Eng.]

THATCH Thatch, v. t. [imp. & p. p. Thatched; p. pr. & vb. n. Thatching.] Etym: [From Thatch, n.: cf. OE. thecchen, AS. to cover.]

Defn: To cover with, or with a roof of, straw, reeds, or some similar substance; as, to thatch a roof, a stable, or a stack of grain.

THATCHER Thatch"er, n.

Defn: One who thatches.

THATCHING Thatch"ing, n.

1. The act or art of covering buildings with thatch; so as to keep out rain, snow, etc.

2. The materials used for this purpose; thatch.

THAUGHT Thaught, n. (Naut.)

Defn: See Thwart.

THAUMATOLATRY Thau`ma*tol"a*try, n. Etym: [Gr.

Defn: Worship or undue admiration of wonderful or miraculous things. [R.] The thaumatolatry by which our theology has been debased for more than a century. Hare.

THAUMATROPE Thau"ma*trope, n. Etym: [Gr. (Opt.)

Defn: An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn.

Note: It consists of a card having on its opposite faces figures of two different objects, or halves of the same object, as a bird and a cage, which, when the card is whirled rapidlz round a diameter by the strings that hold it, appear to the eye combined in a single picture, as of a bird in its cage.

THAUMATURGE Thau"ma*turge, n. Etym: [See Thaumaturgus.]

Defn: A magician; a wonder worker. Lowell.

THAUMATURGIC; THAUMATURGICAL Thau`ma*tur"gic, Thau`ma*tur"gic*al, a.

Defn: Of or pertaining to thaumaturgy; magical; wonderful. Burton.

THAUMATURGICS Thau`ma*tur"gics, n.

Defn: Feats of legerdemain, or magical performances.

THAUMATURGIST Thau`ma*tur"gist, n.

Defn: One who deals in wonders, or believes in them; a wonder worker. Carlyle.

THAUMATURGUS Thau`ma*tur"gus, n. Etym: [NL., from Gr.

Defn: A miracle worker; — a title given by the Roman Catholics to some saints.

THAUMATURGY Thau"ma*tur`gy, n. Etym: [Gr.

Defn: The act or art of performing something wonderful; magic; legerdemain. T. Warton.

THAVE Thave, n.

Defn: Same as Theave. [Prov. Eng.]

THAW Thaw, v. i. [imp. & p. p. Thawed; p. pr. & vb. n. Thawing.] Etym: [AS. Þ\'bewian, Þ\'bewan; akin to D. dovijen, G. tauen, thauen (cf. also verdauen 8digest, OHG. douwen, firdouwen), Icel. Þeyja, Sw. töa, Dan. töe, and perhaps to Gr.

1. To melt, dissolve, or become fluid; to soften; — said of that which is frozen; as, the ice thaws.

2. To become so warm as to melt ice and snow; — said in reference to the weather, and used impersonally.

3. Fig.: To grow gentle or genial.

THAW Thaw, v. t.

Defn: To cause (frozen things, as earth, snow, ice) to melt, soften, or dissolve.

THAW Thaw, n.

Defn: The melting of ice, snow, or other congealed matter; the resolution of ice, or the like, into the state of a fluid; liquefaction by heat of anything congealed by frost; also, a warmth of weather sufficient to melt that which is congealed. Dryden.

THAWY Thaw"y, a.

Defn: Liquefying by heat after having been frozen; thawing; melting.

THE The, v. i.

Defn: See Thee. [Obs.] Chaucer. Milton.

THE The (the, when emphatic or alone; the, obscure before a vowel; the, obscure before a consonant; 37), definite article. Etym: [AS. the, a later form for earlier nom. sing. masc. se, formed under the influence of the oblique cases. See That, pron.]

Defn: A word placed before nouns to limit or individualize their meaning.

Note: The was originally a demonstrative pronoun, being a weakened form of that. When placed before adjectives and participles, it converts them into abstract nouns; as, the sublime and the beautiful. Burke. The is used regularly before many proper names, as of rivers, oceans, ships, etc.; as, the Nile, the Atlantic, the Great Eastern, the West Indies, The Hague. The with an epithet or ordinal number often follows a proper name; as, Alexander the Great; Napoleon the Third. The may be employed to individualize a particular kind or species; as, the grasshopper shall be a burden. Eccl. xii. 5.

THE The, adv. Etym: [AS. th\'c7, th\'df, instrumental case of se, seó, th\'91t, the definite article. See 2d The.]

Defn: By that; by how much; by so much; on that account; — used before comparatives; as, the longer we continue in sin, the more difficult it is to reform. "Yet not the more cease I." Milton. So much the rather thou, Celestial Light, Shine inward, and the mind through all her powers Irradiate. Milton.

THEA The"a, n. Etym: [NL. See Tea.] (Bot.)

Defn: A genus of plants found in China and Japan; the tea plant.

Note: It is now commonly referred to the genus camellia.

THEANDRIC The*an"dric, a. Etym: [Gr.

Defn: Relating to, or existing by, the union of divine and human operation in Christ, or the joint agency of the divine and human nature. Murdock.

THEANTHROPIC; THEANTHROPICAL The`an*throp"ic, The`an*throp"ic*al, a.

Defn: Partaking of, or combining, both divinity and humanity. [R.] The gorgeous and imposing figures of his [Homer's] theanthropic sytem. Gladstone.

THEANTHROPISM The*an"thro*pism, n. Etym: [Gr.

1. A state of being God and man. [R.] Coleridge.

2. The ascription of human atributes to the Deity, or to a polytheistic deity; anthropomorphism. Gladstone.

THEANTHROPIST The*an"thro*pist, n.

Defn: One who advocates, or believes in, theanthropism.

THEANTHROPY The*an"thro*py, n.

Defn: Theanthropism.

THEARCHIC The*ar"chic, a. Etym: [Gr. Thearchy.]

Defn: Divinely sovereign or supreme. [R.] He [Jesus] is the thearchic Intelligence. Milman.

THEARCHY The"ar*chy, n. Etym: [Gr. -archy: cf. Gr.

Defn: Government by God; divine sovereignty; theocracy.

THEATER; THEATRE The"a*ter, The"a*tre, n. Etym: [F. thé\'83tre, L. theatrum, Gr. dhya to meditate, think. Cf. Theory.]

1. An edifice in which dramatic performances or spectacles are exhibited for the amusement of spectators; anciently uncovered, except the stage, but in modern times roofed.

2. Any room adapted to the exhibition of any performances before an assembly, as public lectures, scholastic exercises, anatomical demonstrations, surgical operations, etc.

3. That which resembles a theater in form, use, or the like; a place rising by steps or gradations, like the seats of a theater. Burns. Shade above shade, a woody theater Of stateliest view. Milton.

4. A sphere or scheme of operation. [Obs.] For if a man can be partaker of God's theater, he shall likewise be partaker of God's rest. Bacon.

5. A place or region where great events are enacted; as, the theater of war.

THEATIN; THEATINE The"a*tin, The"a*tine, n. Etym: [F. théatin, It. theatino.] (R. C. Ch.)

1. One of an order of Italian monks, established in 1524, expressly to oppose Reformation, and to raise the tone of piety among Roman Catholics. They hold no property, nor do they beg, but depend on what Providence sends. Their chief employment is preaching and giving religious instruction.

Note: Their name is derived from Theate, or Chieti, a city of Naples, the archbishop of which was a principal founder of the order; but they bore various names; as, Regular Clerks of the Community, Pauline Monks, Apostolic Clerks, and Regular Clerks of the Divine Providence. The order never flourished much out of Italy.

2. (R. C. Ch.)

Defn: One of an order of nuns founded by Ursula Benincasa, who died in 1618.

THEATRAL The"a*tral, a. Etym: [L. theatralis: cf. F. théatral.]

Defn: Of or pertaining to a theater; theatrical. [Obs.]

THEATRIC The*at"ric, a.

Defn: Theatrical. Woods over woods in gay, theatric pride. Goldsmith.

THEATRICAL The*at"ric*al, a. Etym: [L. theatricus, Gr.

Defn: Of or pertaining to a theater, or to the scenic representations; resembling the manner of dramatic performers; histrionic; hence, artificial; as, theatrical performances; theatrical gestures. — The*at`ri*cal"i*ty, n. — The*at"ric*al*ly, adv. No meretricious aid whatever has been called in — no trick, no illusion of the eye, nothing theatrical. R. Jefferies.

THEATRICALS The*at"ric*als, n. pl.

Defn: Dramatic performances; especially, those produced by amateurs. Such fashionable cant terms as `theatricals,' and `musicals,' invented by the flippant Topham, still survive among his confraternity of frivolity. I. Disraeli.

THEAVE Theave, n. Etym: [Cf. W. dafad a sheep, ewe.]

Defn: A ewe lamb of the first year; also, a sheep three years old. [Written also thave.] [Prov. Eng.] Halliwell.

THEBAIC The*ba"ic, a. Etym: [L. thebaicus, Gr.

Defn: Of or pertaining to Thebes in Egypt; specifically, designating a version of the Bible preserved by the Copts, and esteemed of great value by biblical scholars. This version is also called the Sahidic version.

THEBAID The"ba*id, n. Etym: [L. Thebais, -idis.]

Defn: A Latin epic poem by Statius about Thebes in Boeotia.

THEBAINE The*ba"ine, n. Etym: [So called from a kind of Egyptian opium produced at Thebes.] (Chem.)

Defn: A poisonous alkaloid, C19H21NO3, found in opium in small quantities, having a sharp, astringent taste, and a tetanic action resembling that of strychnine.

THEBAN The"ban, a. Etym: [L. Thebanus.]

Defn: Of or pertaining to Thebes. Theban year (Anc. Chron.), the Egyptian year of 365 days and 6 hours. J. Bryant.

THEBAN The"ban, n.

Defn: A native or inhabitant of Thebes; also, a wise man. I'll talk a word with this same learned Theban. Shak.

THECA The"ca, n.; pl. Thecæ. Etym: [L., fr. Gr. Tick a cover.]

1. A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord.

2. (Zoöl.) (a) The chitinous cup which protects the hydranths of certain hydroids. (b) The more or less cuplike calicle of a coral. (c) The wall forming a calicle of a coral.

THECAL The"cal, a.

Defn: Of or pertaining to a theca; as, a thecal abscess.

THECAPHORE The"ca*phore, n. Etym: [Theca + Gr. thécaphore.] (Bot.) (a) A surface or organ bearing a theca, or covered with thecæ. (b) See Basigynium.

THECASPOROUS The*cas"po*rous, a. (Bot.)

Defn: Having the spores in thecæ, or cases.

THECATA The*ca"ta, n. pl. Etym: [NL., from Gr. (Zoöl.)

Defn: Same as Thecophora.

THECLA Thec"la, n.

Defn: Any one of many species of small delicately colored butterflies belonging to Thecla and allied genera; — called also hairstreak, and elfin.

THECODACTYL The`co*dac"tyl, n. [ (Zoöl.)

Defn: Any one of a group of lizards of the Gecko tribe, having the toes broad, and furnished with a groove in which the claws can be concealed.

THECODONT The"co*dont, a. Etym: [Gr.

1. (Anat.)

Defn: Having the teeth inserted in sockets in the alveoli of the jaws.

2. (Paleon.)

Defn: Of or pertaining to the thecodonts.

THECODONT The"co*dont, n. (Paleon.)

Defn: One of the Thecodontia.

THECODONTIA The`co*don"ti*a, n. pl. Etym: [NL.] (Paleon.)

Defn: A group of fossil saurians having biconcave vertebræ and the teeth implanted in sockets.

THECOPHORA The*coph"o*ra, n. pl. Etym: [NL., from Gr. (Zoöl.)

Defn: A division of hydroids comprising those which have the hydranths in thecæ and the gonophores in capsules. The campanularians and sertularians are examples. Called also Thecata. See Illust. under Hydroidea.

THECOSOMATA The`co*so"ma*ta, n. pl. Etym: [NL. See Theca, and Soma.] (Zoöl.)

Defn: An order of Pteropoda comprising those species which have a shell. See Pteropoda. — The`co*so"ma*tous, a.

THEDOM The"dom, n. Etym: [Thee to prosper + -dom.]

Defn: Success; fortune; luck; chance. [Obs.] Evil thedom on his monk's snout. Chaucer.

THEE Thee, v. i. Etym: [AS. ; akin to OS. thihan, D. gedijen, G. gedeihen, OHG. gidihan, Goth. , Lith. tekti to fall to the lot of. Cf. Tight, a.]

Defn: To thrive; to prosper. [Obs.] "He shall never thee." Chaucer. Well mote thee, as well can wish your thought. Spenser.

THEE Thee, pron. Etym: [AS. th\'c7, acc. & dat. of th\'d4 thou. See Thou.]

Defn: The objective case of thou. See Thou.

Note: Thee is poetically used for thyself, as him for himself, etc. This sword hath ended him; so shall it thee, Unless thou yield thee as my prisoner. Shak.

THEFT Theft, n. Etym: [OE. thefte, AS. Þiéfthe, Þ\'dffthe, Þeófthe. See Thief.]

1. (Law)

Defn: The act of stealing; specifically, the felonious taking and removing of personal property, with an intent to deprive the rightful owner of the same; larceny.

Note: To constitute theft there must be a taking without the owner's consent, and it must be unlawful or felonious; every part of the property stolen must be removed, however slightly, from its former position; and it must be, at least momentarily, in the complete possession of the thief. See Larceny, and the Note under Robbery.

2. The thing stolen. [R.] If the theft be certainly found in his hand alive, . . . he shall restore double. Ex. xxii. 4.

THEFTBOTE Theft"bote`, n. Etym: [Theft + bote compensation.] (Law)

Defn: The receiving of a man's goods again from a thief, or a compensation for them, by way of composition, with the intent that the thief shall escape punishment.

THEGN Thegn, n.

Defn: Thane. See Thane. E. A. Freeman.

THEGNHOOD Thegn"hood, n.

Defn: Thanehood. E. A. Freeman.

THEIFORM The"i*form, a. Etym: [NL. thea tea, the tea plant + -form: cf. F. théiforme.]

Defn: Having the form of tea.

THEINE The"ine, n. Etym: [F. théine, fr. NL. thea. See Theiform.] (Chem.)

Defn: See Caffeine. Called also theina.

THEIR Their, pron. & a. Etym: [OE. thair, fr. Icel. Þeirra, Þeira, of them, but properly gen. pl. of the definite article; akin to AS. th\'bera, th\'d6ra, gen. pl. of the definite article, or fr. AS. th\'d6ra, influenced by the Scandinavian use. See That.]

Defn: The possessive case of the personal pronoun they; as, their houses; their country.

Note: The possessive takes the form theirs (theirs is best cultivated. Nothing but the name of zeal appears 'Twixt our best actions and the worst of theirs. Denham.

THEISM The"ism, n. Etym: [From Gr. théisme. Cf. Enthusiasm, Pantheon, Theology.]

Defn: The belief or acknowledgment of the existence of a God, as opposed to atheism, pantheism, or polytheism.

THEIST The"ist, n. Etym: [Cf. F. théiste. See Theism.]

Defn: One who believes in the existence of a God; especially, one who believes in a personal God; — opposed to atheist.

THEISTIC; THEISTICAL The*is"tic, The*is"tic*al, a.

Defn: Of or pertaining to theism, or a theist; according to the doctrine of theists.

THELPHUSIAN Thel*phu"si*an, n. Etym: [Gr. (Zoöl.)

Defn: One of a tribe of fresh-water crabs which live in or on the banks of rivers in tropical countries.

THELYTOKOUS The*lyt"o*kous, a. Etym: [Gr. (Zoöl.)

Defn: Producing females only; — said of certain female insects.

THEM Them, pron. Etym: [AS. th\'d6m, dat. pl. of the article, but influenced by the Scand. use of the corresponding form Þeim as a personal pronoun. See They.]

Defn: The objective case of they. See They. Go ye rather to them that sell, and buy for yourselves. Matt. xxv. 9. Then shall the King say unto them on his right hand, Come, ye blessed of my Father. Matt. xxv. 34.

Note: Them is poetically used for themselves, as him for himself, etc. Little stars may hide them when they list. Shak.

THEMATIC The*mat"ic, a. Etym: [Gr. thématique.]

1. (Gram.)

Defn: Of or pertaining to the theme of a word. See Theme, n., 4.

2. (Mus.)

Defn: Of or pertaining to a theme, or subject. Thematic catalogue (Mus.), a catalogue of musical works which, besides the title and other particulars, gives in notes the theme, or first few measures, of the whole work or of its several movements.

THEME Theme, n. Etym: [OE. teme, OF. teme, F. thème, L. thema, Gr. Do, and cf. Thesis.]

1. A subject or topic on which a person writes or speaks; a proposition for discussion or argument; a text. My theme is alway one and ever was. Chaucer. And when a soldier was the theme, my name Was not far off. Shak.

2. Discourse on a certain subject. Then ran repentance and rehearsed his theme. Piers Plowman. It was the subject of my theme. Shak.

3. A composition or essay required of a pupil. Locke.

4. (Gram.)

Defn: A noun or verb, not modified by inflections; also, that part of a noun or verb which remains unchanged (except by euphonic variations) in declension or conjugation; stem.

5. That by means of which a thing is done; means; instrument. [Obs.] Swift.

6. (Mus.)

Defn: The leading subject of a composition or a movement.

THEMIS The"mis, n. Etym: [L., fr. Gr. (Gr. Myth.)

Defn: The goddess of law and order; the patroness of existing rights.

THEMSELVES Them*selves", pron.

Defn: The plural of himself, herself, and itself. See Himself, Herself, Itself.

THEN Then, adv. Etym: [Originally the same word as than. See Than.]

1. At that time (referring to a time specified, either past or future). And the Canaanite was then in the land. Gen. xii. 6. Now I know in part; but then shall I know even as also I am known. 1 Cor. xiii. 12.

2. Soon afterward, or immediately; next; afterward. First be reconciled to thy brother, and then come and offer thy gift. Matt. v. 24.

3. At another time; later; again. One while the master is not aware of what is done, and then in other cases it may fall out to be own act. L'Estrange. By then. (a) By that time. (b) By the time that. [Obs.] But that opinion, I trust, by then this following argument hath been well read, will be left for one of the mysteries of an indulgent Antichrist. Milton. Now and then. See under Now, adv. — Till then, until that time; until the time mentioned. Milton.

Note: Then is often used elliptically, like an adjective, for then existing; as, the then administration.

THEN Then, conj.

1. Than. [Obs.] Spenser.

2. In that case; in consequence; as a consequence; therefore; for this reason. If all this be so, then man has a natural freedom. Locke. Now, then, be all thy weighty cares away. Dryden.

Syn. — Therefore. Then, Therefore. Both these words are used in reasoning; but therefore takes the lead, while then is rather subordinate or incidental. Therefore states reasons and draws inferences in form; then, to a great extent, takes the point as proved, and passes on to the general conclusion. "Therefore being justified by faith, we have peace with God." Rom. v. 1. "So then faith cometh by hearing, and hearing by the word of God." Rom. x. 17.

THENADAYS Then"a*days, adv.

Defn: At that time; then; in those days; — correlative to nowadays. [R.]

THENAL; THENAR The"nal, The"nar, a. Etym: [NL., fr. Gr. (Anat.)

Defn: Of or pertaining to the thenar; corresponding to thenar; palmar.

THENAR The"nar, n. (Anat.) (a) The palm of the hand. (b) The prominence of the palm above the base of the thumb; the thenar eminence; the ball of the thumb. Sometimes applied to the corresponding part of the foot.

THENARDITE The*nard"ite, n. Etym: [Named after the French chemist, L.J.Thénard.] (Min.)

Defn: Anhydrous sodium sulphate, a mineral of a white or brown color and vitreous luster.

THENCE Thence, adv. Etym: [OE. thenne, thanne, and (with the adverbal -s; see -wards) thennes, thannes (hence thens, now written thence), AS. thanon, thanan, thonan; akin to OHG. dannana, dannan, danan, and G. von dannen, E. that, there. See That.]

1. From that place. "Bid him thence go." Chaucer. When ye depart thence, shake off the dust under your feet for a testimony against them. Mark vi. 11.

Note: It is not unusual, though pleonastic, to use from before thence. Cf. Hence, Whence. Then I will send, and fetch thee from thence. Gen. xxvii. 45.

2. From that time; thenceforth; thereafter. There shall be no more thence an infant of days. Isa. lxv. 20.

3. For that reason; therefore. Not to sit idle with so great a gift Useless, and thence ridiculous, about him. Milton.

4. Not there; elsewhere; absent. [Poetic] Shak.

THENCEFORTH Thence`forth", adv.

Defn: From that time; thereafter. If the salt have lost his savor, wherewith shall it be salted it is thenceforth good for nothing. Matt. v. 13.

Note: This word is sometimes preceded by from, — a redundancy sanctioned by custom. Chaucer. John. xix. 12.

THENCEFORWARD Thence`for"ward, adv.

Defn: From that time onward; thenceforth.

THENCEFROM Thence`from", adv.

Defn: From that place. [Obs.]

THEOBROMA The`o*bro"ma, n. Etym: [NL., fr. Gr. théobrome.] (Bot.)

Defn: A genus of small trees. See Cacao.

THEOBROMIC The`o*bro"mic, a. (Chem.)

Defn: Of, pertaining to, or designating, an acid extracted from cacao butter (from the Theobroma Cacao), peanut oil (from Arachis hypogæa), etc., as a white waxy crystalline substance.

THEOBROMINE The`o*bro"mine, n. (Chem.)

Defn: An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from Theobroma Cacao) as a bitter white crystalline substance; — called also dimethyl xanthine.

THEOCHRISTIC The`o*chris"tic, a. Etym: [Gr.

Defn: Anointed by God.

THEOCRACY The*oc"ra*cy, n. Etym: [Gr. théocratie. See Theism, and cf. Democracy.]

1. Government of a state by the immediate direction or administration of God; hence, the exercise of political authority by priests as representing the Deity.

2. The state thus governed, as the Hebrew commonwealth before it became a kingdom.