Trews, trōōz, n.pl. trousers, esp. of tartan cloth.—n. Trews′man, one wearing trews. [Ir. trius, Gael. triubhas. Cf. Trousers.]

Trey, trā, n. (Shak.) a three at cards or dice: a card or die of three spots. [O. Fr. treis—L. tres, three.]

Triable, trī′a-bl, adj. subject to legal trial.—n. Trī′ableness.

Triact, trī′akt, adj. having three rays.—Also Triac′tinal, Trī′actine.

Triad, trī′ad, n. the union of three: a Welsh composition arranged in groups of three: an association of three kindred deities.—adj. Triad′ic.—n. Trī′adist, a composer of triads. [L. trias, triadis—Gr. trias, triadostreis, three.]

Triadelphous, trī-a-del′fus, adj. (bot.) having stamens united into three bundles. [Gr. treis, tria, three, adelphos, a brother.]

Triage, trī′āj, n. what is picked out, esp. broken coffee-beans.

Trial, trī′al, n. a trying: the act of trying: examination by a test: the state of being tried: suffering: temptation: judicial examination: attempt: a piece of ware used to test the heat of a kiln.—ns. Trī′al-day (Shak.), day of trial; Trī′al-fire (Shak.), a fire for trying or proving; Trī′al-trip, an experimental trip of a new vessel, to test her sailing-powers, &c.—On trial, on probation, as an experiment.

Trialism, trī′a-lizm, n. the doctrine of the existence of body, soul, and spirit in man.—ns. Trīal′ity, threeness; Trī′alogue, a colloquy of three persons.

Triandria, trī-an′dri-a, n. an order of plants having three equal stamens.—n. Trian′der, such a plant.—adjs. Trian′drian, Trian′drous. [Gr. treis, tria, three, anēr, andros, a male.]