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A pellet or ball, usually of steel coated with copper or nickel, that measures 7/40 of an inch (0.44 centimeter) in diameter, used in air rifles.
[From BB, a size of birdshot pellet intermediate between B and BBB that measures 17100 of an inch (0.43 centimeter) in diameter (from the fact that BB guns originally fired birdshot pellets of this size).]
base on balls
the internet domain name for
(Computer Science) Barbados
(on Brit pencils)double black: denoting a very soft lead
1. a size of shot, 0.18 in. (0.46 cm) in diameter, fired from an air rifle (BB gun).
2. Also called BB shot. shot of this size.
base on balls.