butterwort

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun any of numerous carnivorous bog plants of the genus Pinguicula having showy purple or yellow or white flowers and a rosette of basal leaves coated with a sticky secretion to trap small insects

Etymology

From butter + wort: perhaps from the ability of the leaves to coagulate milk, or from their peculiar sliminess.

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