Definition of Catatonic

Catatonic: 1. Characterized by marked motor abnormalities including immobility (catalepsy or stupor), excessive motor activity (purposeless agitation), extreme negativism, mutism, posturing or stereotyped movements, echolalia, and/or echopraxia.
2. A person with catatonia or catatonic schizophrenia.

Last Editorial Review: 8/28/2013

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