[Fr., dim. of barbe beard: see -ETTE.] A platform or mound of earth within a fortification, on which guns are raised so that they can be fired over the parapet. Guns en barbette, barbette gun or battery: those so mounted as to fire over the parapet; similarly in ironclad ships (see quot. 1876). Hence attrib., as in barbette-cruiser, -turret.
1772. Simes, Mil. Guide. When the parapet of a work is only of such a height that the guns may fire over it without being obliged to make embrasures, it is said the guns fire en Barbet.
1822. Byron, Juan, VII. xii. Two batteries Casemated one, and tother a barbette.
1872. C. King, Mountain. Sierra Nev., vii. 151. A huge slab pointed out like a barbette gun.
1876. Daily News, 5 May, 6/1. A barbette battery is a battery of guns exposed on the upper deck, but enclosed in a fixed turret, which only partially protects the guns and the gunners.
1884. Pall Mall Gaz., 2 Dec., 2/2. A twin-screw barbette cruiser.