ballism

[bal-iz-uh m]
Also bal·lis·mus [ba-liz-muh s] /bæˈlɪz məs/.

Origin of ballism

1955–60; < New Latin ballismus < Greek ballismós a jumping around, dancing, equivalent to báll(ein) to throw + -ismos -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

ballismus in Medicine

ballismus

[bə-lĭzməs]
n.
  1. Jerky or shaking movements of the arms or legs, especially such movements occurring in chorea.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.