• synonyms


See more synonyms for autonomic on Thesaurus.com
  1. autonomous.
  2. of or relating 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.
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Also au·to·nom·i·cal.

Origin of autonomic

First recorded in 1825–35; autonom(y) + -ic
Related formsau·to·nom·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for autonomic


  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
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Derived Formsautonomically, 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

Word Origin and History for autonomic


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

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Online Etymology Dictionary, © 2010 Douglas Harper

autonomic in Medicine


  1. Functionally independent; not under voluntary control.
  2. Relating to the autonomic nervous system.
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Related formsau′to•nomi•cal•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.