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[hahy-per-ki-nee-zhuh, -zhee-uh, -zee-uh, -kahy-] /ˌhaɪ pər kɪˈni ʒə, -ʒi ə, -zi ə, -kaɪ-/
Pathology. an abnormal amount of uncontrolled muscular action; spasm.
Psychiatry. a disorder occurring in children and adolescents, characterized by excessive activity, extreme restlessness, impulsivity, and a short attention span.
Also, hyperkinesis
[hahy-per-ki-nee-sis, -kahy-] /ˌhaɪ pər kɪˈni sɪs, -kaɪ-/ (Show IPA)
1840-50; hyper- + -kinesia
Related forms
[hahy-per-ki-net-ik, -kahy-] /ˌhaɪ pər kɪˈnɛt ɪk, -kaɪ-/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hyperkinetic
  • It's a nifty effect, but it barely hints at what the technology might do in the hands of a hyperkinetic developer.
British Dictionary definitions for hyperkinetic


/ˌhaɪpəkɪˈniːzɪə; -kaɪ-/
noun (pathol)
excessive movement, as in a muscle spasm
extreme overactivity in children
Derived Forms
hyperkinetic (ˌhaɪpəkɪˈnɛtɪk; -kaɪ-) adjective
Word Origin
C20: from hyper- + -kinesia from Greek kinēsis movement, from kinein to move
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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Word Origin and History for hyperkinetic

1880, from hyper- + kinetic. Perhaps immediately from French hyperkinetic (1874). Related: Hyperkinesis.

Online Etymology Dictionary, © 2010 Douglas Harper
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hyperkinetic in Medicine

hyperkinesia hy·per·ki·ne·sia (hī'pər-kə-nē'zhə, -kī-) or hy·per·ki·ne·sis (-sĭs)
Pathologically increased muscular movement.

hy'per·ki·net'ic (-nět'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 hyperkinetic


in dogs, a disorder in which muscle spasms are prominent. It is usually associated with distemper, encephalitis, or other diseases and often appears during the convalescent period. Jaw spasms may interfere with eating, and extreme exhaustion follows severe episodes in which the dog cannot sleep. Treatment involves good nutrition, vitamin supplements, and sedation. Antispasmodic drugs and muscle relaxants are used to relieve the symptoms.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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