1. Often Battlements. a parapet or cresting, originally defensive but later usually decorative, consisting of a regular alternation of merlons and crenels; crenelation.

2. Often Battlements. a parapet or cresting, originally defensive but later usually decorative, consisting of a regular alternation of merlons and crenels; crenelation.

3. Noun Often Battlements. a parapet or cresting, originally defensive but later usually decorative, consisting of a regular alternation of merlons and crenels; crenelation.

4. It was designed to resemble an English Gothic castle gatehouse, including rusticated stone walls, a battlement with crenels and merlons, arched windows, a massive arched door for a portcullis, and Bartizans with false arrow slits.