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Added 9 October 2026

coltan

/ˈkoʊlˌtæn/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about coltan at Wordnik → Where our words come from →

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

Origin

Blend of columbite + tantalite.

From Wiktionary, via Kaikki.org (CC BY-SA)

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