- a condition characterized by twisting, shaking, and jerking motions.
- Parkinson's disease.
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
- 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.