: a parapet with open spaces that surmounts a wall and is used for defense or decoration.

What was a battlement used for?

The function of battlements in war is to protect the defenders by giving them something to hide behind, from which they can pop out to launch their own missiles.

What is the difference between a parapet and battlement?

is that parapet is a low retaining wall while battlement is in fortification: an indented parapet, formed by a series of rising members called cops or merlons, separated by openings called crenelles or embrasures, the soldier sheltering himself behind the merlon while he fires through the embrasure or through a ...