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dystonia

[dis-toh-nee-uh] /dɪsˈtoʊ ni ə/
noun, Pathology
1.
abnormal tone of any tissue.
Origin
Related forms
dystonic
[dis-ton-ik] /dɪsˈtɒn ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for dystonia
  • Acute dystonia typically develops shortly after taking an antipsychotic drug.
  • For example, it is used to treat cervical dystonia, to decrease abnormal head position and reduce neck pain.
  • dystonia is a rare disease leading to a severe handicap.
British Dictionary definitions for dystonia

dystonia

/dɪsˈtəʊnɪə/
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
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
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dystonia in Medicine

dystonia dys·to·ni·a (dĭs-tō'nē-ə)
n.
Abnormal tonicity of tissue.


dys·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.
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Encyclopedia Article for dystonia

movement disorder characterized by the involuntary and repetitive contraction of muscle groups, resulting in twisting movements, unusual postures, and possible tremor of the involved muscles. As the disorder persists, movement may affect other muscle groups. Although dystonias may occur in families or sporadically, many are secondary to other disorders as reactions to medications; for example, one of the most common dystonias is induced by levodopa, a drug used in the treatment of Parkinson disease.

Learn more about dystonia with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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