BATTERY, in the military art, a parapet thrown up to cover the gunners, and men employed about the guns, from the enemy's shot. This parapet is cut into embrassures, for the cannon to fire through. The height of the embrassures, on the inside, is about three feet; but they go sloping lower to the outside. Their wideness is two or three feet, but open to six or seven on the outside. The mass of earth that is betwixt two embrassures, is called the merlon. The platform of a battery is a floor of planks and sleepers, to keep the wheels of the guns from sinking into the earth; and is always made sloping towards the embrassures, both to hinder the reverse, and to facilitate the bringing back of the gun.