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[ak-uh-thizh-uh, -thiz-ee-uh] /ˌæk əˈθɪʒ ə, -ˈθɪz i ə/
a state of motor restlessness, sometimes produced by neuroleptic medication, that ranges from a feeling of inner distress to an inability to sit still.
Origin of akathisia
1900-05; < Czech akathisie < Greek a- a-6 + káthis(is) “sitting” (noun derivative of kathízein “to seat, make sit, take one's seat”; kat- cat- + hízein “to seat,” akin to sit1) + New Latin -ia -ia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for akathisia


the inability to sit still because of uncontrollable movement caused by reaction to drugs
Word Origin
C20: from a- + -kithisia, ultimately from Greek cathedra seat
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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akathisia in Medicine

akathisia ak·a·this·i·a or ac·a·this·i·a (āk'ə-thĭz'ē-ə)

  1. Motor restlessness characterized by muscular quivering and the inability to sit still, often a result of chronic ingestion of neuroleptic drugs.

  2. Intense anxiety at the thought of sitting down; inability to sit down.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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