Webster's Revised Unabridged Dictionary (1913 + 1828)
Tri"cro*tous (?), a. (Physiol.) Tricrotic.
Tri*cur"vate (?), a. [Pref. tri- + curvate.] (Zoöl.) Curved in three directions; as, a tricurvate spicule (see Illust. of Spicule).
Tri*cus"pid (?), a. [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.) 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.
Tricus"pid*ate (?), a. Three-pointed; ending in three points; as, a tricuspidate leaf.
Tri"cy*cle (?), n. [Pref. tri- + cycle as inbicycle.] A three-wheeled velocipede. See Illust. under Velocipede. Cf. Bicycle.
Tri*dac"na (?), n. [L., pl., a kind of oysters, fr. Gr. eaten at three bites, tri- + to bite.] (Zoöl.) 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.
Tri*dac"tyl Tri*dac"tyle (?), a. [Gr. : (see Tri-) + digit: cf. F. tridactyle.] (Biol.) Having three fingers or toes, or composed of three movable parts attached to a common base.
Tri*dac"tyl*ous (?), a. (Biol.) Tridactyl.
Trid"dler (?), n. (Zoöl.) The jacksnipe. [Local, U.S.]
Tride (?), a. [Cf. F. tride lively, quick.] Short and ready; fleet; as, a tride pace; -- a term used by sportsmen.
Tri*dec"ane (?), n. [Pref. tri- + Gr. ten. So called from the number of carbon atoms in the molecule.] (Chem.) 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.
Tri`dec*a*to"ic (?), a. [Pref. tri- + Gr. de`katos tenth.] (Chem.) Of, pertaining to, or designating, that acid of the fatty acids heterologous with tridecane. It is a white crystalline substance.
Tri`de*cat"y*lene (?), n. [Pref. tri-+ Gr. tenth + E. ethylene.] (Chem.) 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.
Tri"dent (?), n. [L. tridens, -entis; tri- (see Tri-) + dens tooth: cf. F. trident. See Tooth.]
1. (Class Myth.) A kind of scepter or spear with three prongs, -- the common attribute of Neptune.
2. (Rom. Antiq.) 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.) 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.
Tri"dent, a. [L. tridens.] Having three teeth or prongs; tridentate.
Tri*den"tate (?), Tri*den"ta*ted (?), a. [NL. tridentatus. See Trident.] Having three teeth; three-toothed.
Tri"dent*ed (?), a. Having three prongs; trident; tridentate; as, a tridented mace. [R.]
Tri`dent*if"er*ous (?), a. [L. tridentifer; tridens trident + ferre to bear.] Bearing a trident.
Tri*den"tine (?), a. [From L. Tridentum Trent.] Of or pertaining to Trent, or the general church council held in that city.
Tri*di`a*pa"son (?), n. [Pref. tri- + diaposon.] (Anc. Mus.) A triple octave, or twenty-second.
Tri`di*men"sion*al (?), a. [Pref. tri- + dimensional.] (Chem.) Having three dimensions; extended in three different directions.
Tri"ding (?), n. A riding. See Trithing.
Trid"u*an (?), a. [L. triduanus, fr. triduum space of three days; tri- + dies day.] Lasting three lays; also, happening every third day. [R.]
Trid"y*mite (?), n. [Gr. threefold. So called in allusion to the supposed threefold nature of the twin crystals.] (Min.) Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.
Tried (?), imp. & p. p. of Try. Also adj. Proved; tested; faithful; trustworthy; as, a tried friend.
Tri*e"dral (?), a. See Trihedral.
Tri*en"ni*al (?), a. [L. triennium the space of three years; tri- (see Tri-) + annus year. See Annual.]
1. Continuing three years; as, triennial parliaments; a triennial reign.
2. Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation.
Tri*en"ni*al, n. Something which takes place or appears once in three years.
Tri*en"ni*al*ly, adv. Once in three years.
Tri"ens (?), n. [L., from tres, tria, three.] (Rom. Antiq.) A Roman copper coin, equal to one third of the as. See 3d As, 2.
Tri"er (?), n. [From Try.]
1. One who tries; one who makes experiments; one who examines anything by a test or standard.
2. One who tries judicially.
3. (Law) A person appointed according to law to try challenges of jurors; a trior.
4. That which tries or approves; a test.
Tri"er*arch (?), n. [L. trierarchus, Gr. ; a trireme + a leader, a chief.] (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.
Tri"er*arch`y (?), n.; pl. Trierarchises (#). [ Gr. .] The office duty of a trierarch.
Tri`e*ter"ic*al (?), a. [L. trietericus, Gr. , fr. (sc. ) a triennial festival; (see Tri-.) + a year.] Kept or occurring once in three years; triennial. [R.]
Tri`e*ter"ics (?), n. pl. [L. trieterica, pl., fr. Gr. of a triennial festival.] (Class. Antiq.) Festival games celebrated once in three years. [R.]
Tri*eth`yl*am"ine (?), n. [Pref. tri- + ethylamine.] (Chem.) A tertiary amine analogous to trimethylamine.
Tri*fa"cial (?), a. [Pref. tri- + facial.] (Anat.) See Trigeminal.
Tri"fal`low (?), v. t. [imp. & p. p. Trifallowed (?); p. pr. & vb. n. Trifallowing.] [Pref. tri- + fallow. Cf. Thryfallow.] To plow the third time before sowing, as land.
Tri*fa"ri*ous (?), a. [L. trifarius of three sorts or ways, threefold; cf. Gr. . Cf. Bifarious.] (Bot.) Facing three ways; arranged in three vertical ranks, as the leaves of veratrum.
Tri*fas"ci*a`ted (?), a. [Pref. tri- + fasciated.] Having, or surrounded by, three fasciæ, or bands.
Tri"fid, a. [L. trifidus; tri- (see Tri-) + the root of findere to split: cf. F. trifide.] Cleft to the middle, or slightly beyond the middle, into three parts; three-cleft.
Tri*fis"tu*la*ry (?), a. [Pref. tri- + fistula, fistular.] Having three pipes.
Sir T. Browne.
Tri"fle (?), n. [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.
Trifles light as air
Are to the jealous confirmation strong
As proofs of holy writ.
Small sands the mountain, moments make year,
And frifles life.
2. A dish composed of sweetmeats, fruits, cake, wine, etc., with syllabub poured over it.
Tri"fle, v. i. [imp. & p. p. Trifled (?); p. pr. & vb. n. Trifling (?).] [OE. trifelen, truflen. See Trifle, n.] 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.
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.
Tri"fle, v. t.
1. To make of no importance; to treat as a trifle. [Obs.]
2. To spend in vanity; to fritter away; to waste; as, to trifle away money. We trifle time."
Tri"fler (?), n. One who trifles.
Tri"fling (?), a. Being of small value or importance; trivial; paltry; as, a trifling debt; a trifling affair. -- Tri"fling*ly, adv. -- Tri"fling*ness, n.
Tri*flo"ral (?), Tri*flo"rous (?), a. [Pref. tri- + L. flos, floris, flower.] (Bot.) Three-flowered; having or bearing three flowers; as, a triflorous peduncle.
Tri*fluc`tu*a"tion (?), n. [Pref. tri- + fluctuation.] A concurrence of three waves. [Obs.] A trifluctuation of evils."
Sir T. Browne.
Tri*fo"li*ate (?), Tri*fo"li*a`ted (?), a. [Tri- + foliate. Cf. Trefoil.] (Bot.) Having three leaves or leaflets, as clover. See Illust. of Shamrock.
Tri*fo"li*o*late (?), a. [Pref. tri- + foliolate.] (Bot.) Having three leaflets.
Tri*fo"li*um (?), n. [L., clover.] (Bot.) 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.
Tri"fo*ly (?), n. [L. trifolium. See Trifoliate, Trefoil.] (Bot.) Sweet trefoil. [Obs.]
She was crowned with a chaplet of trifoly.
Tri*fo"ri*um (?), n. [LL., fr. L. tri- (see Tri-) + foris, pl. fores, a door.] (Arch.) The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.
Tri"form (?), a. [L. triformis; tri- (see Tri-) + forma form.] Having a triple form or character. This triform antagonism."
Goddess Triform, I own thy triple spell.
Tri*form"i*ty (?), n. [L. triformitas.] The state of being triform, or of having a threefold shape.
Tri*fur"cate (?), Tri*fur"ca*ted (?), a. [L. trifurcus; tri- (see Tri-) + furca fork.] Having three branches or forks; trichotomous.
Trig (?), v. t. [Cf. Dan. trykke to press, Sw. trycka.] To fill; to stuff; to cram. [Obs.]
Dr. H. More.
Trig, a. [Formerly written trick, akin to trick to dress.] Full; also, trim; neat. [Prov. Eng. & Scot.]
To sit on a horse square and trig.
Brit. Quart. Rev.
Trig, v. t. [See Trigger.] To stop, as a wheel, by placing something under it; to scotch; to skid.
Trig, n. [See Trigger.] A stone, block of wood, or anything else, placed under a wheel or barrel to prevent motion; a scotch; a skid. [Eng.]
Trig"a*mist (?), n. [See Trigamy.] One who has been married three times; also, one who has three husbands or three wives at the same time.
Trig"a*mous (?), a. [L. trigamus a thrice-married man, Gr. thrice married; (see Tri-) + marriage: cf. F. trigame.] (Bot.) Having three sorts of flowers in the same head, -- male, female, and hermaphrodite, or perfect, flowers.
Trig"a*my (?), n. [L. trigamia,Gr. : cf. F. trigamie. See Trigamous.] The act of marrying, or the state of being married, three times; also, the offense of having three husbands or three wives at the same time.
Tri*gas"tric (?), a. [Pref. tri- + Gr. belly.] (Anat.) Having three bellies; -- said of a muscle.
Tri*gem"i*nal (?), a. [See Trigeminous.] (Anat.) Of, pertaining to, or designating, the fifth pair of cranial nerves, which divide on each side of the head into three main branches distributed to the orbits, jaws, and parts of the mouth; trifacial.
Tri*gem"i*nous (?), a. [L. trigeminus born three together; tri- (see Tri-) + geminus twin. Cf. Tergeminous.] Born three together; being one of three born at the same birth; also, threefold.
Tri*gen"ic (?), a. [Pref. tri- + gen- + -ic. So named in reference to its composition, it being supposed to contain the radicals of three molecules of cyanic acid.] (Chem.) Of, pertaining to, or designating, an acid, C4H7N3O2, obtained, by the action of the vapor of cyanic acid on cold aldehyde, as a white crystalline substance having a slightly acid taste and faint smell; -- called also ethidene- ∨ ethylidene-biuret.
Tri*ges"i*mo-se*cun"do (?), a. [L. in trigesimo-secundo in the thirty-second.] Having thirty-two leaves to a sheet; as, a trigesimo-secundo form, book, leaf, size, etc.
Tri*ges"i*mo-se*cun"do, n. A book composed of sheets so folded that each one makes thirty-two leaves; hence, indicating, more or less definitely, a size of book; -- usually written 32mo, or 32°, and called thirty-twomo.
Trig"ger (?), n. [For older tricker, from D. trekker, fr. trekken to draw, pull. See Trick, n.]
1. A catch to hold the wheel of a carriage on a declivity.
2. (Mech.) A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece.
Trigger fish (Zoöl.), a large plectognath fish (Balistes Carolinensis or B. capriscus) common on the southern coast of the United States, and valued as a food fish in some localities. Its rough skin is used for scouring and polishing in the place of sandpaper. Called also leather jacket, and turbot.
Tri*gin`tal (?), n. [LL. trigintate, fr. L. triginta thirty. See Trental.] (R. C. Ch.) A trental.
Tri*glyc"er*ide (?), n. [Pref. tri- + glyceride.] (Chem.) A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals.
Tri"glyph (?), n. [L. triglyphus, Gr. ; (see Tri-) + to carve: cf. F. triglyphe.] (Arch.) An ornament in the frieze of the Doric order, repeated at equal intervals. Each triglyph consists of a rectangular tablet, slightly projecting, and divided nearly to the top by two parallel and perpendicular gutters, or channels, called glyphs, into three parts, or spaces, called femora. A half channel, or glyph, is also cut upon each of the perpendicular edges of the tablet. See Illust. of Entablature.
Tri*glyph"ic (?), Tri*glyph"ic*al (?), a.
1. Consisting of, or pertaining to, triglyphs.
2. Containing three sets of characters or sculptures.
Trig"ness (?), n. [See Trig trim, neat.] The quality or state of being trig; smartness; neatness.
Their spars had no man-of-war trigness.
Tri"gon (?), n. [L. trigonum, Gr. ; (see Tri-) + a corner, angle: cf. F. trigone.]
1. A figure having three angles; a triangle.
2. (Astrol.) (a) A division consisting of three signs. (b) Trine, an aspect of two planets distant 120 degrees from each other.
3. (Gr. & Rom. Antiq.) (a) A kind of triangular lyre or harp. (b) A kind of game at ball played by three persons standing at the angular points of a triangle.
Trig"o*nal (?), a. Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.