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respiratory quotient

noun, Physiology
1.
the ratio of the amount of carbon dioxide released by the lungs to the amount of oxygen taken in during a given period.
Origin
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for respiratory-quotient

respiratory quotient

noun
1.
(biology) the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism, tissue, or cell in a given time
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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respiratory-quotient in Medicine

respiratory quotient n.
Abbr. R.Q.
The ratio of carbon dioxide produced by tissue metabolism to oxygen consumed in the same metabolism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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