surgical incision of the perineum to enlarge the vagina and so facilitate delivery during childbirth
episiotomy详细解释
ep.i.si.ot.o.my n.（名词）【复数】ep.i.si.ot.o.mies Surgical incision of the perineum during childbirth to facilitate delivery.外阴切开术：分娩时切开外阴以助生产的手术 来源：Greek epision [pubic region] 希腊语 epision [阴部] -tomy-tomy
