bat·tle·ment
(b
at
l-m
ənt)
n.A notched parapet built on top of a wall, with alternating merlons and crenels for decoration or defense.Also called embattlement.
[Middle Englishbatelment, alteration (influenced bybatel, battle)ofOld Frenchbatillement, tower, turret, frombastille; see BASTILLE.]
battle·ment′ed(-mĕn′tid)adj.

battlement