crotal

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made

Etymology

Either from French crotale or directly from Latin crotalum. Ultimately from Ancient Greek κρόταλον (krótalon, “clapper”). Doublet of crotalum.

In classic literature

Synonyms

crottle, crottal

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