VariousWords beta
Related Terms:
rare earth
rare earth metal
thorium
scandium
mischmetal
rare earth elements
bastnasite
ree
agardite
yttrium
lustrous
zirconium
orthochromite
metal
wakefieldite
kreep
trivalent
rare earth mineral
fergusonite
soft
salt
lanthanide
rare earth magnet
magnetic
Noun
Definition: Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium.