the branch of physiology that deals with the physiological processes of organisms with respect to their environment.
Origin of ecophysiology
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the study of the physiology of organisms with respect to their adaptation to the environment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012