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[air-eyt, ey-uh-reyt] /ˈɛər eɪt, ˈeɪ əˌreɪt/
verb (used with object), aerated, aerating.
to expose to the action or effect of air or to cause air to circulate through:
to aerate milk in order to remove odors.
to change or treat with air or a gas, especially with carbon dioxide.
Physiology. to expose (a medium or tissue) to air as in the oxygenation of the blood in respiration.
Origin of aerate
1785-95; < Latin āer- aer- + -ate1
Related forms
aeration, noun
nonaerated, adjective
nonaerating, adjective
subaerate, verb (used with object), subaerated, subaerating.
subaeration, noun
unaerated, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for aeration


verb (transitive)
to charge (a liquid) with a gas, esp carbon dioxide, as in the manufacture of effervescent drink
to expose to the action or circulation of the air, so as to purify
Derived Forms
aeration, noun
aerator, noun
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
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Word Origin and History for aeration

1570s, from French aération, from aérer (v.), from Latin aer (see air (n.1)). In some cases, from aerate.



1794, from Latin aer (genitive aeris; see air (n.1)) + verbal suffix -ate (2). Related: Aerated; aerating.

Online Etymology Dictionary, © 2010 Douglas Harper
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aeration in Medicine

aeration aer·a·tion (âr'ā'shən)

  1. Exposure to air.

  2. Saturation of a fluid with air or a gas.

  3. The exchange of carbon dioxide and oxygen in the lungs.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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aeration in Science
  1. To add a gas, such as carbon dioxide, to a liquid.

  2. To supply with oxygen. Blood is aerated in the alveoli of the lungs.

  3. To supply with air or expose to the circulation of air.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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