an airtight bag used to collect expired air for analysis of oxygen consumption.
Origin of Douglas bag
1960–65; named after Claude G. Douglas (1882–1963), British physiologist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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.