A strong wooden rail, supported by stanchions extending as a fence across the foremost part of the quarter-deck, on the top of which some of the seamen's hammocks are usually stowed in time of battle. In a vessel of war the vacant spaces between the stanchions are commonly filled with rope-mats, cork, or pieces of old cable; and the upper part, which contains a double rope-netting above the sail, is stuffed with full hammocks to intercept small shot in the time of battle. Also, a temporary fortification or fence made with abatis, palisades, or any obstacles, to bar the approach of an enemy by a given avenue.