Terbium
(Ter"bi*um) n. [NL., fr. Ytterby, in Sweden. See Erbium.] (Chem.) A rare metallic element,
of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other
rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.
Terce
(Terce) n. See Tierce.
Tercel
(Ter"cel) n. See Tiercel. Called also tarsel, tassel. Chaucer.
Tercelet
(Terce"let) n. (Zoöl.) A male hawk or eagle; a tiercelet. Chaucer.
Tercellene
(Ter"cel*lene) n. (Zoöl.) A small male hawk. [R.] Sir T. Browne.
Tercentenary
(Ter*cen"te*na*ry) a. [L. ter thirce + E. centenary.] Including, or relating to, an interval
of three hundred years. — n. The three hundredth anniversary of any event; also, a celebration of such
an anniversary.
Tercet
(Ter"cet) n. [F., fr. It. terzetto, dim. of terzo, third, L. tertius. See Tierce, and cf. Terzetto.]
1. (Mus.) A triplet. Hiles.
2. (Poetry) A triplet; a group of three lines.
Tercine
(Ter"cine) n. [F., from L. tertius the third.] (Bot.) A cellular layer derived from the nucleus of
an ovule and surrounding the embryo sac. Cf. Quintine.
Terebate
(Ter"e*bate) n. A salt of terebic acid.
Terebene
(Ter"e*bene) n. (Chem.) A polymeric modification of terpene, obtained as a white crystalline
camphorlike substance; — called also camphene. By extension, any one of a group of related substances.
Terebenthene
(Ter`e*ben"thene) n. (Chem.) Oil of turpentine. See Turpentine.
Terebic
(Te*reb"ic) a. (Chem.) Pertaining to, or obtained from, terbenthene (oil of turpentine); specifically,
designating an acid, C7H10O4, obtained by the oxidation of terbenthene with nitric acid, as a white
crystalline substance.
Terebilenic
(Ter`e*bi*len"ic) a. (Chem.) Of, pertaining to, or designating, a complex acid, C7H8O4,
obtained as a white crystalline substance by a modified oxidation of terebic acid.
Terebinth
(Ter"e*binth) n. [L. terbinthus, Gr. : cf. F. térébinthe. Cf. Turpentine.] (Bot.) The turpentine
tree.
Terebinthic
(Ter`e*bin"thic) a. (Chem.) Of or pertaining to turpentine; resembling turpentine; terbinthine; as,
terbinthic qualities.
Terebinthinate
(Ter`e*bin"thi*nate) a. Impregnating with the qualities of turpentine; terbinthine.
Terebinthine
(Ter`e*bin"thine) a. [L. terbinthinus, Gr. .] Of or pertaining to turpentine; consisting of
turpentine, or partaking of its qualities.
Terebra
(||Ter"e*bra) n.; pl. E. Terebras L. Terebræ [L., a borer.]
1. (Zoöl.) A genus of marine gastropods having a long, tapering spire. They belong to the Toxoglossa.
Called also auger shell.
2. (Zoöl.) The boring ovipositor of a hymenopterous insect.
