autonomic

[aw-tuh-nom-ik]
adjective
2.
of or pertaining to the autonomic nervous system.
3.
Physiology. under the control of the autonomic nervous system.
4.
Cell Biology. produced by internal forces or causes; spontaneous.
Also, autonomical.


Origin:
1825–35; autonom(y) + -ic

autonomically, adverb
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World English Dictionary
autonomic (ˌɔːtəˈnɒmɪk)
 
adj
1.  occurring involuntarily or spontaneously
2.  of or relating to the autonomic nervous system
3.  Also: autonomous (of plant movements) occurring as a result of internal stimuli
 
auto'nomically
 
adv

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Etymonline
Word Origin & History

autonomic
1832, "pertaining to autonomy" (q.v.); used mostly in physiology.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

autonomic au·to·nom·ic (ô'tə-nŏm'ĭk)
adj.

  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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Example sentences
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.
Octopuses have a fairly unusual autonomic nervous system, with many neurons
  present in the tentacles rather than the brain.
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