Barbette gun

a single gun, or a number of guns, mounted in barbette, or partially protected by a parapet or turret.

See also: Barbette

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Explosive rum based cocktail including gunpowder tea, the 'HMS Temeraire', is named after the first British ship to be equipped with barbette gun shields in 1876 and 'Cuffs and Buttons' is a refreshing fruity tipple based on a traditional Victorian recipe which later became known as Southern Comfort.
"The initial tasks were to re-excavate the underground magazines and the two Barbette gun emplacements.
(15) The protected barbette guns installed by the Australian colonies of Queensland, Tasmania, New South Wales, and the 100 tonners, all adopted axial vents.