NEODYMIUM

neodymium, Nd, atomic number

(noun) a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium

Source: WordNet® 3.1

Etymology

Noun

neodymium (countable and uncountable, plural neodymiums)

A chemical element (symbol Nd) with an atomic number of 60: a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.

(countable) A single atom of this element.

Source: Wiktionary

Ne`o*dym"i*um, n. Etym: [NL. Dee Neo-, and Didymium.] (Chem.)

Definition: An elementary substance which forms one of the constituents of didymium. Symbol Nd. Atomic weight 140.8.

Source: Webster’s Unabridged Dictionary 1913 Edition