bauxite

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst

Etymology

Derived from the name of Les Baux in France, plus + -ite. The /ks/ in the English pronunciation is from a spelling pronunciation.

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