Terbic :: Terbic (a.) Of, pertaining to, or containing, terbium; also, designating certain of its compounds..
Terbium :: Terbium (n.) 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..
Ytterbic :: Ytterbic (a.) Pertaining to, or derived from, ytterbium; containing ytterbium..
Ytterbium :: Ytterbium (n.) A rare element of the boron group, sometimes associated with yttrium or other related elements, as in euxenite and gadolinite. Symbol Yb; provisional atomic weight 173.2. Cf. Yttrium..