Pivot gun


Also found in: Wikipedia.
a gun mounted on a pivot or revolving carriage, so as to turn in any direction.

See also: Pivot

References in periodicals archive ?
4) "C" pivot offers to a Central pivot gun emplacement where the mounting could turn a full 360 degrees.
It was a pivot gun under his command that played a key role in the surrender of Forts Hatteras and Clark at Hatteras Inlet in August 1861.