[ik-spahyuh r-uh-tawr-ee, -tohr-ee]


pertaining to the expiration of air from the lungs.

Origin of expiratory

First recorded in 1840–50; expirat(ion) + -ory1
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Examples from the Web for expiratory

Historical Examples of expiratory

British Dictionary definitions for expiratory



relating to the expulsion of air from the lungs during respiration
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

expiratory in Medicine




Of, relating to, or involving the expiration of air from the lungs.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.