Source : Webster's Revised Unabridged Dictionary (1913)

Hysterotomy \Hys`ter*ot"o*my\, n. [Gr. "yste`ra womb + ? to cut:
   cf. F. hyst['e]rotomie.] (Med.)
   The C[ae]sarean section. See under {C[ae]sarean}.

Source : WordNet®

hysterotomy
     n : surgical incision into the uterus (as in cesarean section)