Search Result for "rare_earth":
Wordnet 3.0

NOUN (1)

1. any element of the lanthanide series (atomic numbers 57 through 71);
[syn: rare earth, rare-earth element, lanthanoid, lanthanide, lanthanon]


WordNet (r) 3.0 (2006):

rare earth n 1: any element of the lanthanide series (atomic numbers 57 through 71) [syn: rare earth, rare-earth element, lanthanoid, lanthanide, lanthanon]