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[uh-tak-see-uh] /əˈtæk si ə/
noun, Pathology.
loss of coordination of the muscles, especially of the extremities.
Also, ataxy
[uh-tak-see, a-tak-] /əˈtæk si, æˈtæk-/ (Show IPA)
Compare tabes dorsalis.
Origin of ataxia
1605-15; < New Latin < Greek: indiscipline, equivalent to a- a-6 + táx(is) -taxis + -ia -ia
Related forms
ataxic, adjective
preataxic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for ataxy


(pathol) lack of muscular coordination
Derived Forms
ataxic, atactic, adjective
Word Origin
C17: via New Latin from Greek: lack of coordination, from a-1 + -taxia, from tassein to put in order
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 ataxy



also anglicized as ataxy, "irregularity of bodily functions," 1610s, "confusion, disorder," medical Latin, from Greek ataxia, from a-, privative prefix, + taxis "arrangement, order," from stem of tassein "to arrange" (see tactics). Pathological sense is attested from 1660s.

Online Etymology Dictionary, © 2010 Douglas Harper
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ataxy in Medicine

ataxia a·tax·i·a (ə-tāk'sē-ə) or a·tax·y (ə-tāk'sē)
Loss of the ability to coordinate muscular movement. Also called dyssynergia, incoordination.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ataxy in Science
Loss of muscular coordination as a result of damage to the central nervous system.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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