a condition, chiefly in children, of slow, involuntary, wormlike movements of the fingers, toes, hands, and feet, usually resulting from a brain lesion.
Origin: 1870–75; < Gk áthet(os) not placed (a-a-6+ thetós, equiv. to the- (s. of tithénai to set, put) + -tos verbid suffix) + -osis
Main Entry: ath·e·to·sis Pronunciation: "ath-&-'tO-s&s Function: noun Inflected Form: pluralath·e·to·ses/-"sEz/ : a nervous disorder that is marked by continual slow movements especially of the extremities and is usually due to a brainlesion
Main Entry: ath·e·tot·ic Pronunciation: "ath-&-'tät-ik Variant: orath·e·to·sic/-'tO-sik/ Function: adjective : relating to athetosis :ATHETOID
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.