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[aw-tuh-nom-ik] /ˌɔ təˈnɒm ɪk/
of or relating to the autonomic nervous system.
Physiology. under the control of the autonomic nervous system.
Cell Biology. produced by internal forces or causes; spontaneous.
Also, autonomical.
Origin of autonomic
1825-35; autonom(y) + -ic
Related forms
autonomically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for autonomic
  • So did the activity of the half of the autonomic nervous system known as the sympathetic system.
  • My gut feeling is that chronic pain, is an autonomic nervous system learned response.
  • And when that memory pops into your brain, you're going to have that whole autonomic response that you had originally.
  • autonomic, your post is reasonable up until the end.
  • Octopuses have a fairly unusual autonomic nervous system, with many neurons present in the tentacles rather than the brain.
  • Even when the heart is beating, if the brain is only able to process autonomic systems, then it is no more developed than a mouse.
  • The contraction of these muscles is dependent on the activation of the inner nerves known as the autonomic nerve supply.
  • The autonomic nervous system is controlled by the brain too.
  • Mind can be defined as the function of autonomic nervous system.
  • Sweating is controlled by the autonomic nervous system, the part of the nervous system that is not under your control.
British Dictionary definitions for autonomic


occurring involuntarily or spontaneously
of or relating to the autonomic nervous system
Also autonomous. (of plant movements) occurring as a result of internal stimuli
Derived Forms
autonomically, adverb
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 autonomic

1832, "pertaining to autonomy" (q.v.); used mostly in physiology. Autonomical is recorded from 1650s.

Online Etymology Dictionary, © 2010 Douglas Harper
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autonomic in Medicine

autonomic au·to·nom·ic (ô'tə-nŏm'ĭk)

  1. Functionally independent; not under voluntary control.

  2. Relating to the autonomic nervous system.

au'to·nom'i·cal·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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