Dictionary
ec•o•phys•i•ol•o•gy
Pronunciation: (ek"ō-fiz"ē-ol'u-jē, ē"kō-), [key]—
n.
the branch of physiology that deals with the physiological processes of organisms with respect to their environment.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.