A sex toy shaped like a set of balls, used for strengthening pelvic floor muscles and sexual stimulation

kegel balls

plural of hamster ball

A clear hollow sphere in which a pet rodent can run around while out of its cage.

A projectile consisting of two half balls united by a bar; a bar shot.

(dated) A ball where guests come in fancy dress.

(military, historical) A ball of combustible materials, used to provide light, and sometimes made so as to fired from a cannon or mortar, or to be carried up by a rocket.

(Australia, dated, education) A style of handwriting with distinct circles and straight lines, rather than a more cursive style.

Alternative form of wash-ball.

A contrivance by which a ball, placed in a circular cup with a hole in its bottom, operates as a valve. / (proscribed) A ballcock valve.