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[fiz-ee-ol-uh-jee] /ˌfɪz iˈɒl ə dʒi/
the branch of biology dealing with the functions and activities of living organisms and their parts, including all physical and chemical processes.
the organic processes or functions in an organism or in any of its parts.
Origin of physiology
1555-65; < Latin physiologia < Greek physiología science of natural causes and phenomena. See physio-, -logy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for physiology
  • You should also learn something of the laws of physics and physiology involved.
  • The two-hour program provides an introduction to shark physiology and conservation.
  • Candidates with a background in comparative animal physiology and experience in neurobiology are preferred.
  • He not only loves to work out, but he loves to study the physiology of it.
  • To answer this question, we need to investigate the physiology of taste.
  • When you find it, everyone's physiology in the room changes.
  • These are the consequences of physiology and physics.
  • Mental health is about physiology but not simply the brain.
  • Their physiology, biochemistry, and psychology is set up to avoid violence.
  • Studies show that the Florida manatee has unusual physiology, sensory abilities and brain organization.
British Dictionary definitions for physiology


the branch of science concerned with the functioning of organisms
the processes and functions of all or part of an organism
Derived Forms
physiologist, noun
Word Origin
C16: from Latin physiologia, from Greek
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
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Word Origin and History for physiology

1560s, "study and description of natural objects," from Middle French physiologie or directly from Latin physiologia "natural science, study of nature," from Greek physiologia "natural science, inquiry into nature," from physio- "nature" (see physio-) + logia "study" (see -logy). Meaning "science of the normal function of living things" is attested from 1610s. Related: Physiologic; physiologist.

Online Etymology Dictionary, © 2010 Douglas Harper
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physiology in Medicine

physiology phys·i·ol·o·gy (fĭz'ē-ŏl'ə-jē)
Abbr. phys.

  1. The biological study of the functions of living organisms and their parts.

  2. All the functions of a living organism or any of its parts.

phys'i·ol'o·gist n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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physiology in Science
The scientific study of an organism's vital functions, including growth and development, the absorption and processing of nutrients, the synthesis and distribution of proteins and other organic molecules, and the functioning of different tissues, organs, and other anatomic structures. Physiology studies the normal mechanical, physical, and biochemical processes of animals and plants.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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physiology in Culture

physiology definition

The study of the function of living things, including processes such as nutrition, movement, and reproduction. (Compare anatomy and morphology.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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