cremaster
Pronunciation:
/kɹiːˈmastə//kɹiˈmæstəɹ/noun
Definitions
A thin muscle attached to the testicles.
In the pupae of certain species of butterfly, a hook-shaped protuberance from the rear of the chrysalis casing, by which the caterpillar fixes itself to the pad of silk it has cemented to the underside of a perch.