of or pertaining to physiology.
consistent with the normal functioning of an organism.
Also, physiologic.

1600–10; physiolog(y) + -ical

physiologically, adverb
nonphysiologic, adjective
nonphysiological, adjective
nonphysiologically, adverb
unphysiological, adjective
unphysiologically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
physiological (ˌfɪzɪəˈlɒdʒɪkəl)
1.  of or relating to physiology
2.  of or relating to normal healthful functioning; not pathological

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

c.1600, from physiology.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

physiological phys·i·o·log·i·cal (fĭz'ē-ə-lŏj'ĭ-kəl) or phys·i·o·log·ic (-ĭk)
Abbr. phys.

  1. Of or relating to physiology.

  2. Being in accord with or characteristic of the normal functioning of a living organism.

  3. Relating to the action of a drug when given to a healthy person, as distinguished from its therapeutic action.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Thus the warm glow that accompanies charitable giving has a physiological basis.
The low-carb craze was about simplistic answers to psychological and
  physiological issues.
The researchers drew no conclusions, and the study was not designed to connect
  the phenomena to physiological outcomes.
Full independence requires the use of physiological mechanisms in the animal's
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