capillary

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a tube of small internal diameter; holds liquid by capillary action
  2. noun any of the minute blood vessels connecting arterioles with venules
  3. adjective of or relating to hair

Etymology

From Latin capillāris (“pertaining to the hair”), from capillus (“the hair, properly of the head”), from caput (“head”).

In classic literature

Synonyms

capillary tube, capillary tubing

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