— athetosic, athetotic /ath'i tot"ik/ , adj.
/ath'i toh"sis/ , n. Pathol.
a condition, chiefly in children, of slow, involuntary, wormlike movements of the fingers, toes, hands, and feet, usually resulting from a brain lesion.
[ 1870-75; áthet ( os ) not placed ( a- A- 6 + thetós, equiv. to the- (s. of tithénai to set, put) + -tos verbid suffix) + -OSIS ]