Inability to make purposeful movements

WordNet Word definitions in WordNet
n. inability to make purposeful movements

Wiktionary Word definitions in Wiktionary
n. Total or partial loss of the ability to perform coordinated movements or manipulate objects in the absence of motor or sensory impairment; specifically, a disorder of motor planning.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
apraxia \apraxia\ n. 1. inability to make purposeful movements, but without paralysis or loss of sensory function.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1877, medical Latin, from German apraxie (H. Steinthal, 1871), from Greek apraxia "inaction," from privative prefix a- (see a- (3)) + praxis "a doing, action, business" (see praxis ) + abstract noun ending -ia .

Wikipedia Word definitions in Wikipedia
Apraxia is a motor disorder caused by damage to the brain (specifically the posterior parietal cortex ), in which someone has difficulty with the motor planning to perform tasks or movements when asked, provided that the request or command is understood ...