convulsion
con.vul.sion \k*n-'v*l-sh*n\ \-sh*-.ner-e-\ n 1: an abnormal violent and involuntary contraction or series of contraction s of the muscles 2a: a violent disturbance 2b: an uncontrolled fit : PAROXYSM - con.vul.sion.ary aj
Webster's English Dictionarycon.vul.sion \k*n-'v*l-sh*n\ \-sh*-.ner-e-\ n 1: an abnormal violent and involuntary contraction or series of contraction s of the muscles 2a: a violent disturbance 2b: an uncontrolled fit : PAROXYSM - con.vul.sion.ary aj