Athetosis



a condition, chiefly in children, of slow, involuntary, wormlike movements of the fingers, toes, hands, and feet, usually resulting from a brain lesion.
Historical Examples

More unusual is the rhythmical closing and opening of the hand, successively, of athetosis.
A System of Practical Medicine by American Authors, Vol. I Various

noun
(pathol) a condition characterized by uncontrolled rhythmic writhing movement, esp of fingers, hands, head, and tongue, caused by cerebral lesion
n.

1871, from Greek athetos “not fixed, without position or place, set aside” + -osis. Coined by U.S. nerve specialist William Alexander Hammond (1828-1900).

athetosis ath·e·to·sis (āth’ĭ-tō’sĭs)
n.
A constant succession of slow, writhing, involuntary movements of flexion, extension, pronation, and supination of fingers and hands, and sometimes of toes and feet.
ath’e·toid’ or ath’e·to’sic or ath’e·tot’ic (-tŏt’ĭk) adj.

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