(Ter"e*brant) a. [L. terebrans, -antis, p. pr.] (Zoöl.) Boring, or adapted for boring; — said of certain Hymenoptera, as the sawflies.

(||Ter`e*bran"ti*a) n. pl. [NL.] (Zoöl.) A division of Hymenoptera including those which have an ovipositor adapted for perforating plants. It includes the sawflies.

(Ter"e*brate) v. t. [L. terebratus, p. p. of terebrare, from terebra a borer, terere to rub.] To perforate; to bore; to pierce. [R.] Sir T. Browne.

(Ter"e*bra`ting) a.

1. (Zoöl.) Boring; perforating; — applied to molluskas which form holes in rocks, wood, etc.

2. (Med.) Boring; piercing; — applied to certain kinds of pain, especially to those of locomotor ataxia.

(Ter`e*bra"tion) n. [L. terebratio.] The act of terebrating, or boring. [R.] Bacon.

(||Ter`e*brat"u*la) n.; pl. Terebratulæ [Nl., dim. fr. terebratus, p. p., perforated.] (Zoöl.) A genus of brachiopods which includes many living and some fossil species. The larger valve has a perforated beak, through which projects a short peduncle for attachment. Called also lamp shell.

(Ter`e*brat"u*lid) n. (Zoöl.) Any species of Terebratula or allied genera. Used also adjectively.

(Ter`e*bra*tu"li*form) a. (Zoöl.) Having the general form of a terebratula shell.

(Ter"e*dine) n. [F. térédine.] (Zoöl.) A borer; the teredo.

(Te*re"do) n.; pl. E. Teredos L. Teredines [L., a worm that gnaws wood, clothes, etc.; akin to Gr. L. terere to rub.] (Zoöl.) A genus of long, slender, wormlike bivalve mollusks which bore into submerged wood, such as the piles of wharves, bottoms of ships, etc.; — called also shipworm. See Shipworm. See Illust. in App.

(Ter*eph"tha*late) n. (Chem.) A salt of terephthalic acid.

(Ter`eph*thal"ic) a. [Terebene + phthalic.] (Chem.) Of, pertaining to, or designating, a dibasic acid of the aromatic series, metameric with phthalic acid, and obtained, as a tasteless white crystalline powder, by the oxidation of oil of turpentine; — called also paraphthalic acid. Cf. Phthalic.

(Ter"et) a. Round; terete. [Obs.] Fotherby.

(Te*rete") a. [L. teres, - etis, rounded off, properly, rubbed off, fr. terere to rub.] Cylindrical and slightly tapering; columnar, as some stems of plants.

(Te*re"tial) a. [See Terete.] (Anat.) Rounded; as, the teretial tracts in the floor of the fourth ventricle of the brain of some fishes. Owen.

(Ter"e*tous) a. Terete. [Obs.]

(Ter"gal) a. [L. tergum the back.] (Anat. & Zoöl.) Of or pertaining to back, or tergum. See Dorsal.

(Ter"gant) a. (Her.) Showing the back; as, the eagle tergant. [Written also tergiant.]

(Ter*gem"i*nal Ter*gem"i*nate) a. [See Tergeminous.] (Bot.) Thrice twin; having three pairs of leaflets.

(Ter*gem"i*nous) a. [L. tergeminus; ter thrice + geminus doubled at birth, twin-born. Cf. Trigeminous.] Threefold; thrice-paired. Blount.

  By PanEris using Melati.

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