[ 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.

Nearby words

  1. automobile insurance,
  2. automobilia,
  3. automorphic,
  4. automorphism,
  5. automotive,
  6. autonomic bladder,
  7. autonomic ganglion,
  8. autonomic imbalance,
  9. autonomic nervous system,
  10. autonomic neurogenic bladder

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for autonomically


/ (ˌɔːtəˈnɒmɪk) /


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 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 autonomically



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

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for autonomically


[ ô′tə-nŏmĭk ]


Functionally independent; not under voluntary control.
Relating to the autonomic nervous system.
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.