Douglas+bag

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Douglas bag pouch of Douglas cul-de-sac of Douglas

Main Entry: Doug·las bag
Pronunciation: dg-ls-bag
Function: noun
: an inflatable bag used to collect expired air for the determination of oxygen consumption and basal metabolic rate
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.