coltan

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noun col·tan \ˈkōl-ˌtan\

Definition of coltan

  1. :  a dull black ore that consists of a mixture of columbite and tantalite and is a minor source of tantalum

Recent Examples of coltan from the Web

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Origin and Etymology of coltan

International Scientific Vocabulary columbo-tantalite, from columbite + -o- + tantalite


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