(baseball) A batted ball that gets between several fielders.

A floating sphere, attached to a lever, that controls the level of liquid in a cistern.

plural of ballot box

plural of ballast tank

A type of clay that commonly consists of 20-80% kaolinite, 10-25% mica, and 6-65% quartz.

A ball used in boules.

A spheroidal ball designed for the sport of rugby.

A hollow, bouncy rubber ball, pressurized and covered with usually yellow felt, used in the game of tennis.

A large light inflatable ball, ideally suited to beach games.

A nodule of plant material permeated with minerals found mostly in bituminous and anthracite coal seams