antispasmodic n 1: a drug used to relieve or prevent spasms (especially of the smooth muscles) [syn: {antispasmodic}, {spasmolytic}, {antispasmodic agent}]
Antispasmodic \An`ti*spas*mod"ic\, a. (Med.) Good against spasms. -- n. A medicine which prevents or allays spasms or convulsions. [1913 Webster]