athetosis

 
Pronunciation: /ˌaθɪˈtəʊsɪs/

noun

[mass noun] Medicine
  • a condition in which abnormal muscle contraction causes involuntary writhing movements. It affects some people with cerebral palsy, impairing speech and use of the hands.

Derivatives

athetoid

adjective

athetotic

adjective

Origin:

late 19th century: from Greek athetos 'without position' + -osis