the action of constructing rampparts with gaps for firing guns or arrows
battlements; having the (usually upper) margin cut into rectangular forms (ATA fig. 2-24)
Square openings in the top of a parapet
The arrangement of battlements into a line of alternating merlons and crenels.
(or crenellated). Originally, this was called battlemented, and is a repeated geometric decoration based on the battlements of a castle or similarly fortified building. It is also used to described the tops of pottery vessels which have a wavy or even pie-crust rim. Can also be a term applied to a cornice.
A regular series of gaps in the low wall at the edge of a roof.
The classic castle parapet (a narrow wall built along the outer edge of a wall walk for protection) with up and down crenellations or battlements. The gaps are called embrasures and the raised portions are called merlons. The embrasures allowed the defend
Crenellation (or crenelation, also known as castellation) is the name for the distinctive pattern that frames the tops of the walls of many medieval castles, often called battlements. Crenellation most commonly takes the form of multiple, regular, rectangular spaces cut out of the top of the wall to allow defenders spaces to shoot arrows from and other spaces to hide behind full cover.