ytterbium

• POS: Noun
• HYPHEN: yt=ter=bi=um

CIDE DICTIONARY

ytterbium, n. [NL., fr. Ytterby, in Sweden. See Erbium.].

 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.  [1913 Webster]
" Ytterbium is associated with other rare elements, and probably has not been prepared in a pure state."  [1913 Webster]

OXFORD DICTIONARY

ytterbium, n. Chem. a silvery metallic element of the lanthanide series occurring naturally as various isotopes.

Usage

Symb.: Yb.

Etymology

mod.L f. Ytterby in Sweden