NIOBIUM


Meaning of NIOBIUM in English

n. Chem. a rare grey-blue metallic transition element occurring naturally in several minerals and used in alloys for superconductors.

Usage:

Symb.: Nb. Also called COLUMBIUM.

Derivatives:

niobic adj. niobous adj.

Etymology: Niobe daughter of Tantalus: so called because first found in TANTALITE

Oxford English vocab.      Оксфордский английский словарь.