air gun, airgun n. A kind of gun in which the elastic force of condensed air is used to discharge the ball. The air is powerfully compressed into a reservoir attached to the gun, by a condensing pump, and is controlled by a valve actuated by the trigger. The common BB gun is a type of air gun.
... Sandy. "I've been taking care of this fish while you've been out there facing some boy with an air gun." ... — Boy Scouts in Northern Wilds • Archibald Lee Fletcher
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