ExpirationEx`pi*ra"tion (?), n. [L. expiratio,exspiratio: cf. F. expiration. See Expire.]
1. The act of expiring; as: (a)(Physiol.) The act or process of breathing out, or forcing air from the lungs through the nose or mouth; as, respiration consists of inspiration and expiration; -- opposed to inspiration. (b) Emission of volatile matter; exhalation.
The true cause of cold is an expiration from the globe of the earth. Bacon.
(c) The last emission of breath; death. “The groan of expiration.” Rambler.
(d) A coming to a close; cessation; extinction; termination; end.
Before the expiration of thy time. Shak.
2. That which is expired; matter breathed forth; that which is produced by breathing out, as a sound.
The aspirate “he,” which is . . . a gentle expiration. G. Sharp.