First Known Use: 1999
Dictionary
coltan
coltan
noun col·tan \ˈkōl-ˌtan\
Definition of COLTAN
: a dull black ore that consists of a mixture of columbite and tantalite and is a minor source of tantalum
Origin of COLTAN
International Scientific Vocabulary columbo-tantalite, from columbite + -o- + tantalite
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