revolver

A pistol having a revolving cylinder with several cartridge chambers that may be fired in succession.

One that revolves, as a part of a mechanism.

A revolving credit agreement.

One who or that which revolves.

Specifically— A revolving firearm, especially a pistol, having a revolving barrel provided with a number of bores (as in earlier styles of the weapon), or (as in modern forms) a single barrel with a revolving cylinder at its base, provided with a number of chambers.

A revolving cannon.

A revolving horse-rake.

One who, or that which, revolves; specifically, a firearm ( commonly a pistol) with several chambers or barrels so arranged as to revolve on an axis, and be discharged in succession by the same lock; a repeater.

A handgun with a revolving chamber enabling several shots to be fired without reloading.

Agent noun of revolve; something that revolves.