respiratory quotient(redirected from respiratory coefficient)
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n. Abbr. RQ
The ratio of the volume of carbon dioxide released to the volume of oxygen consumed by a body tissue or an organism in a given period.
(Biology) 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
the ratio of carbon dioxide released by the lungs to oxygen taken in during a given period.