tubes

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
  2. noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
  3. noun a hollow cylindrical shape

Synonyms

tube, tubing

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