1. a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic; [syn: dysprosium, Dy, atomic number 66]
WordNet (r) 3.0 (2006):
atomic number 66
n 1: a trivalent metallic element of the rare earth group; forms
compounds that are highly magnetic [syn: dysprosium,
Dy, atomic number 66]