Dictionary
con•vulse
Pronunciation: (kun-vuls'), [key]—
v.t., -vulsed, -vuls•ing.
1. to shake violently; agitate.
2. to cause to shake violently with laughter, anger, pain, etc.
3. to cause to suffer violent, spasmodic contractions of the muscles.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.