[ ath-i-toh-sis ]
/ ˌæθ ɪˈtoʊ sɪs /
a condition, chiefly in children, of slow, involuntary, wormlike movements of the fingers, toes, hands, and feet, usually resulting from a brain lesion.
Origin of athetosis
Related formsath·e·to·sic, ath·e·tot·ic [ath-i-tot-ik] /ˌæθ ɪˈtɒt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for athetosis
More unusual is the rhythmical closing and opening of the hand, successively, of athetosis.
British Dictionary definitions for athetosis
/ (ˌæθəˈtəʊsɪs) /
pathol a condition characterized by uncontrolled rhythmic writhing movement, esp of fingers, hands, head, and tongue, caused by cerebral lesion
Derived Formsathetoid, adjective
Word Origin for athetosis
C19: from Greek athetos not in place, from a- 1 + tithenai to place
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 athetosis
1871, from Greek athetos "not fixed, without position or place, set aside" + -osis. Coined by U.S. nerve specialist William Alexander Hammond (1828-1900).
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for athetosis
[ ăth′ĭ-tō′sĭs ]
A constant succession of slow, writhing, involuntary movements of flexion, extension, pronation, and supination of fingers and hands, and sometimes of toes and feet.
Related formsath′e•toid′ null null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.