[ek-spuh-rey-shuh n] /ˌɛk spəˈreɪ ʃən/
a coming to an end; termination; close:
the expiration of a contract.
the act of , or breathing out; emission of air from the lungs.
the finish of something; ending; expiry
the act, process, or sound of breathing out
(rare) a last breath; death
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.
expiration ex·pi·ra·tion (ěk’spə-rā’shən)
noun 1. the last date that a product, as food, should be used before it is considered spoiled or ineffective, usually specified on the label or package.
[ik-spahyuh r-uh-tawr-ee, -tohr-ee] /ɪkˈspaɪər əˌtɔr i, -ˌtoʊr i/ adjective 1. pertaining to the of air from the lungs. /ɪkˈspaɪərətərɪ; -trɪ/ adjective 1. relating to the expulsion of air from the lungs during respiration expiratory ex·pi·ra·to·ry (ĭk-spī’rə-tôr’ē) adj. Of, relating to, or involving the expiration of air from the lungs.
- Expiratory reserve volume
expiratory reserve volume n. Abbr. ERV The maximal volume of air, usually about 1000 milliliters, that can be expelled from the lungs after normal expiration. Also called reserve air, supplemental air.
- Expiratory stridor
expiratory stridor n. A singing sound during general anesthesia due to the semi-approximated vocal cords offering resistance to the escape of air.