episiotomy

noun, plural e·pi·si·ot·o·mies. Obstetrics, Surgery.

1. an incision into the perineum and vagina to allow sufficient clearance for birth.

noun plural -mies

1. surgical incision into the perineum during the late stages of labour to prevent its laceration during childbirth and to make delivery easier

n.

1. Incision of the perineum during childbirth to ease delivery.

1. Surgical incision of the perineum during vaginal childbirth to facilitate delivery.