from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Abnormal tonicity of muscle, characterized by prolonged, repetitive muscle contractions that may cause twisting or jerking movements of the body or a body part.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A disabling neurological disorder in which prolonged and repetitive contractions of muscles cause jerking, twisting movements and abnormal postures of the body
Sorry, no etymologies found.