Fortification, the shot-proof covering of a mass of earth on the exterior edge of the ramparts The openings cut through the parapets to permit guns to fire in the required direction are called embrasures: about 18 feet is allowed from one embrasure to another, and the solid intervening part is called the merlon An indented parapet is a battlement (Italian, parapetto, breastwork )
An elevated wall or embankment constructed from earth, wood or stone designed to intercept enemy fire
A low wall that serves as a vertical barrier at the edge of a roof, terrace, or other raised area; in a exterior wall, the part entirely above the roof