Origin: Greek prefix neo-
Neodymium has 2 different meanings across 1 category:
a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
A chemical element (symbol Nd) with an atomic number of 60: a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.
The name comes from the Greek words neos, meaning "new," and dymos, referring to didymium, an earlier element that was later found to be a mixture.