Barbette
BARBETTE (Fr. diminutive of barbe, a beard), a platform inside a fortification raised sufficiently high for artillery placed thereon to be able to fire en barbette, viz. over the top of the parapet; also in warships a raised platform, protected by armour on the sides, upon which guns are mounted en barbette.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)