Trehala, trē-hä′la, n. a kind of manna excreted by the insect Larinus maculatus, in the form of cocoons—also Turkish manna.—n. Trē′halōse, a sugar extracted from trehala.

Treillage, trel′āj, n. a frame to train shrubs and fruit-trees upon. [Fr.]

Trek, trek, v.i. to drag a vehicle: to journey by ox-wagon.—n. the distance from one station to another.—n. Trek′ker, a traveller. [Dut. trekken, to draw.]

Trellis, trel′is, n. a structure of cross-barred or lattice work, for supporting plants, &c.: a shed, &c., of trellis-work.—adj. Trell′ised, having a trellis, or formed as a trellis.—n. Trell′is-work, lattice-work. [O. Fr. treillis—L. trichila, a bower.]

Tremando, trā-man′dō, adv. (mus.) in a trembling, wavering manner. [It.]

Trematoda, trem-a-tō′da, n.pl. a class of flat-worms whose members are parasitic in or on a great variety of animals, the body unsegmented, leaf-like or more or less cylindrical, and provided with adhesive suckers.—n. Trem′atode, one of the foregoing—also Trem′atoid.—adj. Trem′atoid, suctorial. [Gr. trēmatōdēs, porous—trēma, a hole.]

Tremble, trem′bl, v.i. to shake, as from fear, cold, or weakness: to shiver: to shake, as sound.—n. the act of trembling: a morbid trembling.—ns. Trem′blement; Trem′bler; Trem′bling.—adv. Trem′blingly.—n. Trem′bling-pop′lar, the aspen.—adj. Trem′bly, tremulous.—adv. tremulously.—adjs. Trem′ūlant, Trem′ūlous, trembling: affected with fear: quivering.—adv. Trem′ūlously.—n. Trem′ūlousness. [O. Fr. trembler—L. tremulus, trembling—tremĕre, to shake.]

Tremella, trē-mel′a, n. a genus of fungi, of the division Hymenomycetes, soft and gelatinous, mostly growing on decaying wood—Witches' Meat, Fairy Butter.—adjs. Trem′elloid, Trem′ellose.

Tremendous, trē-men′dus, adj. such as astonishes or terrifies by its force or greatness: dreadful.—adv. Tremen′dously.—n. Tremen′dousness.

Tremex, trē′meks, n. a genus of hymenopterous insects. [Gr. trēma, a hole.]