Douglas bag

an airtight bag used to collect expired air for analysis of oxygen consumption.

1960–65; named after Claude G. Douglas (1882–1963), British physiologist Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

Douglas bag Doug·las bag (dŭg'ləs)
A receptacle for collecting expired air to determine oxygen consumption in humans under various work conditions.

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