maar

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a flat-bottomed volcanic crater that was formed by an explosion; often filled with water

Etymology

Borrowed from German Maar; English usage from 1825, from Vulgar Latin *mara (“standing water”), from Latin mare (“sea”). Doublet of mare (“a large, dark plain; a lake on Titan”) and mere (“a body of standing water”).

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