Chapter CDLXIX: Prologue (120)

Defn: An excavation made during a siege, for the purpose of covering the troops as they advance toward the besieged place. The term includes the parallels and the approaches. To open the trenches (Mil.), to begin to dig or to form the lines of approach. Trench cavalier (Fort.), an elevation constructed (by a besieger) of gabions, fascines, earth, and the like, about half way up the glacis, in order to discover and enfilade the covered way. -- Trench plow, or Trench plough, a kind of plow for opening land to a greater depth than that of common furrows.

TRENCHAND Trench"and, a.

Defn: Trenchant. [Obs.] Spenser.

TRENCHANT Trench"ant, a. Etym: [OF. trenchant, F. tranchant, p. pr. See Trench, v. t.]

1. Fitted to trench or cut; gutting; sharp. " Trenchant was the blade." Chaucer.

2. Fig.: Keen; biting; severe; as, trenchant wit.

TRENCHANTLY Trench"ant*ly, adv.

Defn: In a trenchant, or sharp, manner; sharply; severely.

TRENCHER Trench"er, n. Etym: [OE. trencheoir, F. tranchoir, fr. trancher to cut, carve. See Trench, v. t.]

1. One who trenches; esp., one who cuts or digs ditches.

2. A large wooden plate or platter, as for table use.

3. The table; hence, the pleasures of the table; food. It could be no ordinary declension of nature that could bring some men, after an ingenuous education, to place their "summum bonum" upon their trenchers. South. Trencher cap, the cap worn by studens at Oxford and Cambridge Universities, having a stiff, flat, square appendage at top. A similar cap used in the United States is called Oxford cap, mortar board, etc. -- Trencher fly, a person who haunts the tables of others; a parasite. [R.] L'Estrange. -- Trencher friend, one who frequents the tables of others; a sponger. -- Trencher mate, a table companion; a parasite; a trencher fly. Hooker.

TRENCHER-MAN Trench"er-man, n.; pl. Trencher-men (.

1. A feeder; a great eater; a gormandizer. Shak.

2. A cook. [Obs.] The skillfulest trencher-men of Media. Sir P. Sidney.

3. A table companion; a trencher mate. Thackeray.

TRENCHMORE Trench"more, n.

Defn: A kind of lively dance of a rude, boisterous character. Also, music in triple time appropriate to the dance. [Obs.] All the windows in the town dance new trenchmore. Beau. & Fl.

TRENCHMORE Trench"more, v. i.

Defn: To dance the trenchmore. [Obs.] Marston.

TRENCH-PLOW; TRENCH-PLOUGH Trench"-plow", Trench"-plough` v. t.

Defn: To plow with deep furrows, for the purpose of loosening the land to a greater depth than usual.

TREND Trend, v. i. [imp. & p. p. Trended; p. pr. & vb. n. Trending.] Etym: [OE. trenden to roll or turn about; akin to OFries. trind, trund, round, Dan. & Sw. trind, AS. trendel a circle, ring, and E. trendle, trundle.]

Defn: To have a particular direction; to run; to stretch; to tend; as, the shore of the sea trends to the southwest.

TREND Trend, v. t.

Defn: To cause to turn; to bend. [R.] Not far beneath i' the valley as she trends Her silver stream. W. Browne.

TREND Trend, n.

Defn: Inclination in a particular direction; tendency; general direction; as, the trend of a coast. Trend of an anchor. (Naut.) (a) The lower end of the shank of an anchor, being the same distance on the shank from the throat that the arm measures from the throat to the bill. R. H. Dana, Jr. (b) The angle made by the line of a vessel's keel and the direction of the anchor cable, when she is swinging at anchor.

TREND Trend, v. t. Etym: [Cf. G. & OD. trennen to separate.]

Defn: To cleanse, as wool. [Prov. Eng.]

TREND Trend, n.

Defn: Clean wool. [Prov. Eng.]

TRENDER Trend"er, n.

Defn: One whose business is to free wool from its filth. [Prov. Eng.]

TRENDLE Tren"dle, n. Etym: [AS. trendel, tryndel, circle, ring. See Trend, v. i., and cf. Trundle.]

Defn: A wheel, spindle, or the like; a trundle. [Obs.] The shaft the wheel, the wheel, the trendle turns. Sylvester.

TRENNEL Tren"nel, n.

Defn: Corrupt form of Treenail.

TRENTAL Tren"tal, n. Etym: [LL. trentale, fr. L. triginta thirty; akin to tres three: cf. OF. trentel. See Three, and cf. Trigintal.]

1. (R. C. Ch.)

Defn: An office and mass for the dead on the thirtieth day after death or burial. "Their trentals and their shrifts." Spenser.

2. Hence, a dirge; an elegy.

TRENTE ET QUARANTE Trente" et` qua`rante". [F., lit., thirty and forty.]

Defn: Same as Rouge et noir, under Rouge.

TRENTON PERIOD Tren"ton pe"ri*od. (Geol.)

Defn: A subdivision in the lower Silurian system of America; -- so named from Trenton Falls, in New York. The rocks are mostly limestones, and the period is divided into the Trenton, Utica, and Cincinnati epochs. See the Chart of Geology.

TREPAN Tre*pan", n. Etym: [F. trépan (cf. Sp. trépano, It. trepano, trapano), LL. trepanum, fr. Gr. Trephine.]

1. (Surg.)

Defn: A crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine.

2. (Mining)

Defn: A kind of broad chisel for sinking shafts.

TREPAN Tre*pan", v. t. & i. [imp. & p. p. Trepanned; p. pr. & vb. n. Trepanning.] Etym: [Cf. F. trépaner. See Trepan a saw.] (Surg.)

Defn: To perforate (the skull) with a trepan, so as to remove a portion of the bone, and thus relieve the brain from pressure or irritation; to perform an operation with the trepan.

TREPAN Tre*pan", n. Etym: [See Trapan.]

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

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

TREPAN Tre*pan", v. t.

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

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

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

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

TREPANIZE Trep"an*ize, v. t.

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

TREPANNER Tre*pan"ner, n.

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

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

Defn: A trebuchet. [Obs.]

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

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

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

Defn: To perforate with a trephine; to trepan.

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

Defn: Trembling; quaking. Thackeray.

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

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

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

3. (Anc. Astron.)

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

Syn. -- Tremor; agitation; disturbance; fear.

TREPIDITY Tre*pid"i*ty, n.

Defn: Trepidation. [R.]

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

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

TRESOR Tres"or, n.

Defn: Treasure. [Obs.] Chaucer.

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

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

2. (Law)

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

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

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

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

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

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

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

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

TRESPASSER Tres"pass*er, n.

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

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

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

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

TRESSED Tressed, a.

1. Having tresses.

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

TRESSEL Tres"sel, n.

Defn: A trestle.

TRESSFUL Tress"ful, a.

Defn: Tressy. [R.] Sylvester.

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

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

TRESSURED Tres"sured, a. (Her.)

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

TRESSY Tress"y, a.

Defn: Abounding in tresses. J. Baillie.

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

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

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

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

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

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

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

TRESTLEWORK Tres"tle*work`, n.

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

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

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

TRET Tret, obs.

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

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

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

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

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

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

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

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

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

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

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

TREVAT Tre"vat, n.

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

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

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

TREW; TREWE Trew, Trewe, a.

Defn: True. [Obs.] Chaucer.

TREWS Trews, n. pl.

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

TREWTH Trewth, n.

Defn: Truth. [Obs.] Chaucer.

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

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

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

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

2. (Chem.)

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

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

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

2. (Law)

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

TRIABLENESS Tri"a*ble*ness, n.

Defn: Quality or state of being triable.

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

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

TRIACLE Tri"a*cle, n.

Defn: See Treacle. [Obs.] Chaucer.

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

Defn: Having thirty sides.

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

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

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

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

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

3. (Chem.)

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

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

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

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

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

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

Defn: A trigonal trisoctahedron.

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

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

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

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

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

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

4. (Law)

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

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

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

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

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

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

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

Defn: A discourse or colloquy by three persons.

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

Defn: An amide containing three amido groups.

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

Defn: An amine containing three amido groups.

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

Defn: Any one of the Triandria.

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

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

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

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

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

1. (Geom.)

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

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

2. (Mus.)

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

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

4. (Mus.)

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

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

TRIANGLED Tri"an`gled, a.

Defn: Having three angles; triangular.

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

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

2. (Bot.)

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

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

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

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

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

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

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

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

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

2. To make triangular, or three-cornered.

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

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

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

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

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

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

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

Defn: Having three joints.

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

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

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

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

Defn: The Triassic formation.

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

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

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

TRIBAL Trib"al, a.

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

TRIBALISM Trib"al*ism, n.

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

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

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

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

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

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

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

2. (Bot.)

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

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

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

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

5. (Stock Breeding)

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

TRIBE Tribe, v. t.

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

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

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

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

3. (Blacksmithing)

Defn: A tapering mandrel.

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

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

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

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

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

Defn: Having three bracts.

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

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

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

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

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

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

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

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

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

TRIBUNARY Trib"u*na*ry, a.

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

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

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

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

1. (Rom. Antiq.)

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

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

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

TRIBUNESHIP Trib"une*ship, n.

Defn: The office or power of a tribune.

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

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

TRIBUNITIOUS Trib`u*ni"tious, a.

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

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

Defn: In a tributary manner.

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

Defn: The quality or state of being tributary.

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

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

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

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

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

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

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

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

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

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

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

3. (Mining)

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

Syn. -- See Subsidy.

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

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

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

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

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

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

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

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

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

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

Defn: See under Cyanuric.

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

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

2. (Naut.)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Defn: Trichinosis.

TRICHINIZE Trich"i*nize, v. t.

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

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

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

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

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

TRICHINOUS Trich"i*nous, a.

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

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

1. (Min.)

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

2. (Zoöl.)

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

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

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

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

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

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

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

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

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

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

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

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

Defn: A lasso cell.

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

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

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

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

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

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

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

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

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

1. (Bot.)

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

2. (Zoöl.)

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

TRICHOPTER Tri*chop"ter, n. (Zoöl.)

Defn: One of the Trichoptera.

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

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

TRICHOPTERAN Tri*chop"ter*an, (Zoöl.)

Defn: One of the Trichoptera.

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

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

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

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

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

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

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

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

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

Defn: Division into three parts.

TRICHROIC Tri*chro"ic, a.

Defn: Exhibiting trichroism; pleochroic; pleochroism.

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

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

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

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

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

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

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

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

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

Defn: Containing three atoms of chromium.

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

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

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

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

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

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

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

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

6. (Card Playing)

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

7. (Naut.)

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

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

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

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

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

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

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

TRICKER Trick"er, n.

Defn: One who tricks; a trickster.

TRICKER Trick"er, n.

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

TRICKERY Trick"er*y, n.

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

TRICKINESS Trick"i*ness, n.

Defn: The quality of being tricky.

TRICKING Trick"ing, a.

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

TRICKING Trick"ing, n.

Defn: Dress; ornament. Shak.

TRICKISH Trick"ish, a.

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

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

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

TRICKMENT Trick"ment, n.

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

TRICKSINESS Trick"si*ness, n.

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

TRICKSTER Trick"ster, n.

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

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

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

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

Defn: An old game resembling backgammon.

TRICKY Trick"y, a.

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

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

Defn: Triclinic.

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

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

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

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

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

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

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

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

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

2. Hence, any three-colored flag.

TRICOLORED Tri"col`ored, a.

Defn: Having three colors.

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

Defn: Having three horns.

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

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

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

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

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

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

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

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

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

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

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

Defn: Tricrotic.

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

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

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

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

2. (Anat.)

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

TRICUSPIDATE Tricus"pid*ate, a.

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

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

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

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

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

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

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

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

Defn: Tridactyl.

TRIDDLER Trid"dler, n. (Zoöl.)

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

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

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

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

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

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

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

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

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

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

1. (Class Myth.)

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

2. (Rom. Antiq.)

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

3. A three-pronged fish spear.

4. (Geom.)

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

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

Defn: Having three teeth or prongs; tridentate.

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

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

TRIDENTED Tri"dent*ed, a.

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

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

Defn: Bearing a trident.

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

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

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

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

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

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

TRIDING Tri"ding, n.

Defn: A riding. See Trithing.

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

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

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

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

TRIED Tried,

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

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

TRIEDRAL Tri*e"dral, a.

Defn: See Trihedral.

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

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

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

TRIENNIAL Tri*en"ni*al, n.

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

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

Defn: Once in three years.

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

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

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

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

2. One who tries judicially.

3. (Law)

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

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

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

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

Defn: The office duty of a trierarch.

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

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

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

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

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

Defn: A tertiary amine analogous to trimethylamine.

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

Defn: See Trigeminal.

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

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

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

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

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

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

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

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

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

Defn: Having three pipes. Sir T. Browne.

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

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

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

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

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

TRIFLE Tri"fle, v. t.

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

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

TRIFLER Tri"fler, n.

Defn: One who trifles. Waterland.

TRIFLING Tri"fling, a.

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

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

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

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

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

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

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

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

Defn: (Bot.) Having three leaflets.

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

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

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

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