Source : Webster's Revised Unabridged Dictionary (1913)

Antispastic \An`ti*spas"tic\, a. [Gr. ?. See {Antispast}.]
   (Med.)
   (a) Believed to cause a revulsion of fluids or of humors from
       one part to another. [Obs.]
   (b) Counteracting spasms; antispasmodic. -- n. An antispastic
       agent.