Library / English Dictionary

    COLTAN

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A valuable black mineral combining niobite and tantalite; used in cell phones and computer chipsplay

    Synonyms:

    coltan; columbite-tantalite

    Classified under:

    Nouns denoting substances

    Hypernyms ("coltan" is a kind of...):

    mineral (solid homogeneous inorganic substances occurring in nature having a definite chemical composition)

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