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exhalations - 3 dictionary results

ex⋅ha⋅la⋅tion

  [eks-huh-ley-shuhn, ek-suh-]
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–noun
1. the act of exhaling.
2. something that is exhaled; vapor; emanation.
Origin:
1350–1400; ME exalacion < L exhālātiōn- (s. of exhālātiō). See exhale, -ation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ex·ha·la·tion   (ěks'hə-lā'shən, ěk'sə-)   
n.  
  1. The act or an instance of exhaling.
  2. Something, such as air or vapor, that is exhaled.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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exhalation   (ěks'hə-lā'shən)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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