a·prax·i·a (?-pr?k?s?-?)n. Total or partial loss of the ability to perform coordinated movements or manipulate objects in the absence of motor or sensory impairment.[Greek apr?xi?, inaction : a-, without; see a-1 + pr?xis, action; see praxis.]a·prac?tic (?-pr?k?t?k), a·prax?ic (?-pr?k?s?k) adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.apraxia (??præks??) n (Pathology) 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] a?praxic, a?practic adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014a?prax?i?a (??præk si ?, e??præk-) n. a nervous disorder characterized by an inability to perform purposeful movements but not with paralysis or a loss of feeling. [1885?90;