Source : Webster's Revised Unabridged Dictionary (1913)

Corybantiasm \Cor`y*ban"ti*asm\ (-b?n"t?-?z'm), n. [Gr. ???? a
   corybantic frenzy.] (Med.)
   A kind of frenzy in which the patient is tormented by
   fantastic visions and want of sleep. --Dunglison.