Main Entry: con·vul·sion

Pronunciation: \kən-ˈvəl-shən\

Function: noun

Date: 1547

1 : an abnormal violent and involuntary contraction or series of contractions of the muscles
2 a : a violent disturbance b : an uncontrolled fit : paroxysm

— con·vul·sion·ary \-shə-ˌner-ē\ adjective