noun
- a coming to an end; termination; close: the expiration of a contract.
- the act of expiring, or breathing out; emission of air from the lungs.
- Archaic. death.
noun
- the finish of something; ending; expiry
- the act, process, or sound of breathing out
- rare a last breath; death
n.early 15c., “vapor, breath,” from Middle French expiration, from Latin expirationem/exspirationem (nominative expiratio/exspiratio), noun of action from past participle stem of expirare/exspirare (see expire). Meaning “termination, end, close” is from 1560s. n.
- exhalation
- See exhalation.