EXPIRATION

exhalation, expiration, breathing out

(noun) the act of expelling air from the lungs

passing, loss, departure, exit, expiration, going, release

(noun) euphemistic expressions for death; “thousands mourned his passing”

termination, expiration, expiry

(noun) a coming to an end of a contract period; “the expiry of his driver’s license”

Source: WordNet® 3.1

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Etymology

Noun

expiration (countable and uncountable, plural expirations)

The act of expiring.

The act or process of breathing out, or forcing air from the lungs through the nose or mouth

Emission of volatile matter; exhalation.

(euphemism) The last emission of breath; death.

A cessation, extinction, ending

That which is produced by breathing out, as a sound.

Usage notes

In most senses, mainly US; UK equivalent is expiry.

Synonyms

• (breathing out): exhalation

• (cessation): termination, end

Antonyms

• (breathing out): inspiration, inhalation

Source: Wiktionary

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Ex`pi*ra"tion, n. Etym: [L. expiratio,exspiratio: cf. F. expiration. See Expire.]

1. The act of expiring; as: (a)(Physiol.)

Definition: 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 Ant: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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