Trilocular, trī-lok′ū-lar, adj. three-celled.
Trilogy, tril′ō-ji, n. the name given by the Greeks to a group of three tragedies, either connected by a common subject or each representing a distinct story—the Oresteia of Æschylus, which embraces the Agamemnon, the Chœphorœ, and the Eumenides. [Gr. trilogia—tri, tris, thrice, logia, speech—legein, to say.]
Trim, trim, adj. in good order: nice.—v.t. to make trim: to put in due order: to dress: to decorate: to clip: to reduce to proper form: to arrange for sailing: to rebuke sharply, to thrash.—v.i. to balance or fluctuate between parties:—pr.p. trim′ming; pa.t. and pa.p. trimmed.—n. dress: ornaments: state of a ship as to sailing qualities: arrangement.—adv. Trim′ly.—ns. Trim′mer, one who trims: one who fluctuates between parties, a time-server: a scold: a small horizontal beam on a floor into which the ends of joists are framed: a float bearing a baited hook and line, used in fishing for pike; Trim′ming, that which trims: ornamental parts, esp. of a garment, dish, &c.: (pl.) fittings.—adv. Trim′mingly.—n. Trim′ness. [A.S. trymian, to strengthen, set in order—trum, firm.]
Trimembral, trī-mem′bral, adj. having three members.
Trimensual, trī-men′sū-al, adj. happening every three months—also Trimes′tral, Trimes′trial.—n. Trimes′ter, a period of three months.
Trimera, trim′e-ra, n.pl. a division of beetles with tarsi three-jointed.—adj. Trim′erous. [Gr. treis, three, meros, part.]
Trimeter, trim′e-tėr, n. a division of a verse consisting of three measures.—adjs. Trim′eter, Trimet′ric, -al, consisting of three measures, esp. iambic. [Gr. trimetros—treis, three, metron, measure.]
Trimethyl, trī-meth′il, adj. containing three methyl radicals in combination.—n. Trimeth′ylamine, an organic base resembling ammonia in some of its properties, and having a strong herring-brine odour—incorrectly called propylamine.
Trimonthly, trī′munth-li, adj. every three months.
Trimorphism, trī-mor′fizm, n. (biol.) the existence of an organism in three distinct forms, as in certain butterflies, in the common flower Lythrum salicaria, &c.—adjs. Trimor′phic, Trimor′phous.