transpiration

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun the passage of gases through fine tubes because of differences in pressure or temperature
  2. noun the process of giving off or exhaling water vapor through the skin or mucous membranes
  3. noun the emission of water vapor from the leaves of plants

Etymology

Borrowed from Middle French transpiration, from Medieval Latin transpiratio, from transpiro, from Latin trans + spiro.

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