Crenelation’ refers to a series of alternating high and low sections, typically found along the top of a wall or battlement, used for defensive purposes. The high parts, called crenels or merlons, provide cover for defenders, while the low parts, called embrasures, allow them to fire arrows or other projectiles at attackers. Crenelation is commonly seen in medieval architecture and is associated with fortified structures like castles.
