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Medical Term:


Pronunciation: ath′ĕ-tō′sis

Definition: A condition in which there is a constant succession of slow, writhing, involuntary movements of flexion, extension, pronation, and supination of the fingers and hands, and sometimes of the toes and feet. Usually caused by an extrapyramidal lesion.

Synonym(s): extrapyramidal cerebral palsy, Hammond disease

[G. athetos, without position or place]