Convulse

kon-vuls', v.t. [-vuLSED(-vulst'), -yllsing.] To draw or contract violently and irregularly, as muscular parts of the body; to agitate", rend'.— Convul's ion, -shun, n. (Med'.) Unnatural contraction of the muscular parts. Any violent and irregular motion; commotion; disturbance: spasm. — Convul's ive, -siv, a. Producing, or attended with, etc.