swivel gun

American  

noun

1. a gun mounted on a pedestal so that it can be turned from side to side or up and down.

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Etymology

Origin of swivel gun

First recorded in 1705–15

Example Sentences

The chamber in which they were found was a separate piece of a breach-loading swivel gun that was likely kept on the top deck because it was used as an anti-personnel weapon, Farrell said.

From Seattle Times

Gentle light illuminates a circa-1780 flintlock pistol, a 19th-century swivel gun, mortars, glossy cannonballs and other projectiles.

From New York Times

Just 17 days after the Brisbens purchased the salvage rights and formed their company, they recovered the only bronze swivel gun ever found on the 1715 Fleet.

From Washington Times

It’ll take a bit of time for your crew to throw the hooks, so you can man a swivel gun and do some damage, or you can dive into the water.

From Forbes

In Victoria the Legislature has by enactment declared the swivel gun an illegal instrument, and since its abolition the ducks are returning in hundreds to their old breeding-grounds.

From Project Gutenberg