The Collaborative International Dictionary of English v.0.48:
Hysterotomy \Hys`ter*ot"o*my\, n. [Gr. "yste`ra womb + te`mnein to cut: cf. F. hyst['e]rotomie.] (Med.) The act of cutting into the uterus, as in C[ae]sarean section. See under C[ae]sarean. [1913 Webster]WordNet (r) 3.0 (2006):
hysterotomy n 1: surgical incision into the uterus (as in cesarean section)