The biological study of the functions of living organisms and their parts.(noun)
All the functions of a living organism or any of its parts.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "physiology" in a sentence
"Your species assumes that your physiology is the pinnacle of evolution."
"On whatever ground we term physiology, science, psychology is entitled to the same appellation; and the method of investigation which elucidates the true relations of the one set of phenomena will discover those of the other."
"It might well be that investments and actions based on the scientific understanding of what I call the physiology of the planet are the key to human welfare in the 21st century."