1. A defensive wall or parapet with a series of open sections (crenels) and solid sections (merlons) built along the top of a fortification or castle.
Usage: Often used in historical and architectural contexts.; Frequently appears in plural form.
2. The act or process of constructing or equipping with battlements.
Usage: Less common than the first sense.; Archaic or technical usage.

Examples

• The castle's embattlement provided archers with protected positions from which to defend against attackers.
• Medieval fortifications were characterized by their distinctive embattlements along the walls.
• The embattlement of the fortress was reinforced during the 14th century.
• From the embattlement, guards could observe the surrounding countryside.
• The stone embattlement had weathered centuries of warfare and weather.
• Tourists admired the intricate embattlement design of the ancient tower.