BARBETTE
barbette
(noun) (formerly) a mound of earth inside a fort from which heavy gun can be fired over the parapet
Source: WordNet® 3.1
Etymology
Noun
barbette (plural barbettes)
A mound of earth or a platform in a fortification, on which guns are mounted to fire over the parapet.
(nautical) The inside fixed trunk of a warship's gun-mounting, on which the turret revolves. It contains the hoists for shells and cordite from the shell-room and magazine.
Source: Wiktionary
Bar*bette", n. Etym: [F. Cf. Barbet.] (Fort.)
Definition: A mound of earth or a platform in a fortification, on which
guns are mounted to fire over the parapet. En barbette, In barbette,
said of guns when they are elevated so as to fire over the top of a
parapet, and not through embrasures.
– Barbette gun, or Barbette battery, a single gun, or a number of
guns, mounted in barbette, or partially protected by a parapet or
turret.
– Barbette carriage, a gun carriage which elevates guns
sufficiently to be in barbette. [See Illust. of Casemate.]
Source: Webster’s Unabridged Dictionary 1913 Edition