COLUMBITE


Meaning of COLUMBITE in English

[ kə'lʌmbʌɪt ]

■ noun a black mineral consisting of an oxide of iron, manganese, niobium, and tantalum.

Origin

C19: from columbium + -ite 1 .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.