Definition of manganocolumbite in English:

manganocolumbite

noun

Mineralogy
  • A greenish variety of columbite in which the iron is largely or wholly replaced by manganese.

Origin

Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From mangano- + columbite.

Pronunciation

manganocolumbite

/ˌmaŋɡ(ə)nəʊkəˈlʌmbʌɪt/