[ek-spee-uh-tawr-ee, -tohr-ee] /ˈɛk spi əˌtɔr i, -ˌtoʊr i/

able to make atonement or expiation; offered by way of expiation:
expiatory sacrifices.
/ˈɛkspɪətərɪ; -trɪ/
capable of making expiation
given or offered in expiation

1540s, from Latin expiatorius, from expiatus, past participle of expiare (see expiation).


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  • Expiration

    [ek-spuh-rey-shuh n] /ˌɛk spəˈreɪ ʃən/ noun 1. a coming to an end; termination; close: the expiration of a contract. 2. the act of , or breathing out; emission of air from the lungs. 3. Archaic. . /ˌɛkspɪˈreɪʃən/ noun 1. the finish of something; ending; expiry 2. the act, process, or sound of breathing out 3. […]

  • Expiration-date

    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.

  • Expiratory

    [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.

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