Douglas, Claude Gordon (1882–1963), British physiologist. From his laboratory at Oxford, Douglas contributed significantly to the knowledge of human respiratory function. In 1911 he introduced the large airtight bag known as the Douglas bag for use in collecting expired respiratory gases.
Medical Dictionary
Douglas bag
noun Doug·las bag \ˈdəg-ləs-ˌbag\
Medical Definition of DOUGLAS BAG
: an inflatable bag used to collect expired air for the determination of oxygen consumption and basal metabolic rate
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