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dystonia

[dis-toh-nee-uh]
noun Pathology.
  1. abnormal tone of any tissue.

Origin of dystonia

dys- + -tonia
Related formsdys·ton·ic [dis-ton-ik] /dɪsˈtɒn ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for dystonia

dystonia

noun
  1. a neurological disorder, caused by disease of the basal ganglia, in which the muscles of the trunk, shoulders, and neck go into spasm, so that the head and limbs are held in unnatural positions

Word Origin for dystonia

from dys- + -tonia from Greek tonos tension, from teinen to stretch
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
dystonia in Medicine

dystonia

[dĭs-tō′nē-ə]
n.
  1. Abnormal tonicity of tissue.
Related formsdys•ton′ic (-tŏn′ĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.