Caesarean section

A Caesarean section was a medical procedure in which an incision was made through a mother's abdomen to deliver a baby, sometimes in an urgent emergency situation.

In 2259 in the alternate reality, Doctor told  that he had once performed a Caesarean section on a Gorn and delivered octuplets.

In 2367, Beverly Crusher referred to the spaceborne entity named 's birth as a Caesarean section. The baby was too weak to break through its dead mother's shell on its own, so using a narrow ship's phaser beam as a scalpel, an incision was made into the dead creature, just big enough for Junior to break free on its own.