[eks-huh-ley-shuh n, ek-suh-]


the act of exhaling.
something that is exhaled; vapor; emanation.

Origin of exhalation

1350–1400; Middle English exalacion < Latin exhālātiōn- (stem of exhālātiō). See exhale, -ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for exhalations

breath, expiration, respiration, vapor, emanation, air

Examples from the Web for exhalations

Historical Examples of exhalations

  • A portion of these exhalations, however, proceed from the lungs.

  • And a weed is no worse than a weed, however noxious or deadly its exhalations.

    Oklahoma Sunshine

    Freeman E. (Freeman Edwin) Miller

  • The roars of wild beasts, catching the exhalations of people, grew louder.

    Quo Vadis

    Henryk Sienkiewicz

  • A celestial fragrance mingled with the first exhalations of the verdure.

    Popular Tales

    Madame Guizot

  • The other craters are similarly affected, but their exhalations are not so violent.

Word Origin and History for exhalations



late 14c., from Latin exhalationem (nominative exhalatio), noun of action from past participle stem of exhalare (see exhale).

Online Etymology Dictionary, © 2010 Douglas Harper

exhalations in Medicine


[ĕks′hə-lāshən, ĕk′sə-]


The act or an instance of breathing out.expiration
The giving forth of gas or vapor.
Something, such as air or vapor, that is exhaled.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

exhalations in Science



The act of breathing out air. During exhalation, the diaphragm relaxes and moves upward, causing compression of the lungs and an outward flow of air. Also called expiration Compare inhalation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.