disengagement

noun

1. the act or process of disengaging or the state of being disengaged.
2. freedom from obligation or occupation; leisure.
3. Obstetrics. (during childbirth) the emergence of the head or the presenting part of the fetus from the vulva.

noun

1. the act or process of disengaging or the state of being disengaged
2. leisure; ease

n.

1. The emergence of the presenting part of the fetus from the vaginal canal during childbirth.