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A gun discharged by compressed air.
1. (Firearms, Gunnery, Ordnance & Artillery) a gun discharged by means of compressed air
a gun operated by compressed air.
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|Noun||1.||air gun - a gun that propels a projectile by compressed air|
BB gun - an air gun in which BBs are propelled by compressed air
gun - a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
paintball gun - an air gun used in the game of paintball; designed to simulate a semiautomatic