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..