Definitions for: Air Gun

[n] a gun that propels a projectile by compressed air

Webster (1913) Definition: Air" gun` (g[u^]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.

Synonyms: airgun

See Also: BB gun, gun