1. a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite; [syn: samarium, Sm, atomic number 62]
WordNet (r) 3.0 (2006):
atomic number 62
n 1: a grey lustrous metallic element of the rare earth group;
is used in special alloys; occurs in monazite and
bastnasite [syn: samarium, Sm, atomic number 62]