relaxation

Reading level: hard

Estimated CEFR level: C1 — Advanced

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun (physiology) the gradual lengthening of inactive muscle or muscle fibers
  2. noun (physics) the exponential return of a system to equilibrium after a disturbance
  3. noun a feeling of refreshing tranquility and an absence of tension or worry

Etymology

Borrowed from Latin relaxatio, relaxationis; equivalent to relax + -ation.

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