[uh-prak-see-uh, ey-prak-]
noun Pathology.
a disorder of the nervous system, characterized by an inability to perform purposeful movements, but not accompanied by a loss of sensory function or paralysis.

1885–90; < Neo-Latin; see a-6, praxis, -ia

apractic [uh-prak-tik, ey-prak-] , apraxic, adjective
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World English Dictionary
apraxia (əˈpræksɪə)
a disorder of the central nervous system caused by brain damage and characterized by impaired ability to carry out purposeful muscular movements
[C19: via New Latin from Greek: inactivity, from a-1 + praxis action]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

medical L., from Ger. apraxie (H. Steinthal, 1871), from Gk. apraxia "inaction," from privative prefix a- + praxis "a doing, action, business."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

apraxia a·prax·i·a (ā-prāk'sē-ə)

  1. A disorder of voluntary movement consisting of the partial or complete inability to execute purposeful movements without the impairment of muscular power and coordination.

  2. A psychomotor defect characterized by the inability to make proper use of a known object.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences for apraxia
Apraxia of speech, which is now considered a separate disorder in itself.
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