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homeostasis

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ho⋅me⋅o⋅sta⋅sis

  [hoh-mee-uh-stey-sis]
Use homeostasis in a Sentence
–noun
1. the tendency of a system, esp. the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus tending to disturb its normal condition or function.
2. Psychology. a state of psychological equilibrium obtained when tension or a drive has been reduced or eliminated.
Origin:
1925–30; homeo- + stasis

Related forms:
ho⋅me⋅o⋅stat⋅ic  [hoh-mee-uh-stat-ik] , adjective
ho⋅me⋅o⋅stat⋅i⋅cal⋅ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ho·me·o·sta·sis   (hō'mē-ō-stā'sĭs)   
n.  The ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes.
ho'me·o·stat'ic (-stāt'ĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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homeostasis [(hoh-mee-oh-stay-sis)]

The tendency of the body to seek and maintain a condition of balance or equilibrium within its internal environment, even when faced with external changes. A simple example of homeostasis is the body's ability to maintain an internal temperature around 98.6 degrees Fahrenheit, whatever the temperature outside.

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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Main Entry: ho·meo·sta·sis
Variant: or British ho·moeo·sta·sis /"hO-mE-O-'stA-s&s/
Function: noun
: the maintenance of relatively stable internal physiological conditions (as body temperature or the pH of blood) in higher animals under fluctuating environmental conditions; also : the process of maintaining a stable psychological state in the individual under varying psychological pressures or stable social conditions in a group under varying social, environmental, orpolitical factors —ho·meo·stat·ic or British ho·moeo·stat·ic /-'stat-ik/ adjective —ho·meo·stat·i·cal·ly or British ho·moeo·stat·i·cal·ly /-i-k(&-)lE/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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homeostasis ho·me·o·sta·sis (hō'mē-ō-stā'sĭs)
n.

  1. The ability or tendency of an organism or a cell to maintain internal equilibrium by adjusting its physiological processes.
  2. The processes used to maintain such bodily equilibrium.
ho'me·o·stat'ic (-stāt'ĭk) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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homeostasis   (hō'mē-ō-stā'sĭs)  Pronunciation Key 
The tendency of an organism or cell to regulate its internal conditions, such as the chemical composition of its body fluids, so as to maintain health and functioning, regardless of outside conditions. The organism or cell maintains homeostasis by monitoring its internal conditions and responding appropriately when these conditions deviate from their optimal state. The maintenance of a steady body temperature in warm-blooded animals is an example of homeostasis. In human beings, the homeostatic regulation of body temperature involves such mechanisms as sweating when the internal temperature becomes excessive and shivering to produce heat, as well as the generation of heat through metabolic processes when the internal temperature falls too low.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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