Found 2 items, similar to Ytterbium.
English → English (WordNet) Definition: ytterbium ytterbium n : a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime [syn: Yb, atomic number 70]
English → English (gcide) Definition: Ytterbium Ytterbium \Yt*ter"bi*um\, n. [NL., fr. Ytterby, in Sweden. See Erbium.] (Chem.) 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] Note: Ytterbium is associated with other rare elements, and probably has not been prepared in a pure state. [1913 Webster]