Marked by or having the nature of convulsions. / Having or producing convulsions.

In a convulsive manner.

The state or quality of being convulsive.

plural of convulsant

Causing or producing convulsions; convulsive.

Anything, such as a drug, that causes convulsions

present participle of convulse

(transitive) To violently shake or agitate. / (transitive) To create great laughter. / (intransitive) To suffer violent involuntary contraction of the muscles, producing contortions of the body or limbs.

(medicine) An intense, paroxysmal, involuntary muscular contraction. / An uncontrolled fit, as of laughter; a paroxysm. / Violent turmoil.

simple past tense and past participle of convulse