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. 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. Bailey.

2. Hence, any three-colored flag.

(Tri"col`ored) a. Having three colors.

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

(Tri*cor"po*ral Tri*cor"po*rate) a. [L. tricorpor; tri- (see Tri-) + corpus, -oris, body.] (Her.) Represented with three bodies conjoined to one head, as a lion.

(Tri*cos"tate) a. [Pref. tri- + costate.] (Bot.) Three-ribbed; having three ribs from the base.

(||Tri`cot") n. [F.] A fabric of woolen, silk, or cotton knitted, or women to resemble knitted work.

(Tri*crot"ic) a. [Pref. tri- + Gr. to beat.] (Physiol.) Of or pertaining to tricrotism; characterized by tricrotism.

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

(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.

  By PanEris using Melati.

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