ARMS. The munitions of war,--all kinds of weapons whether for offence or defence. Those in a ship are cannons, carronades, mortars, howitzers, muskets, pistols, tomahawks, cutlasses, bayonets, and boarding-pikes. ARMS OF A GREAT GUN. The trunnions. ARMSTRONG GUN. Invented by Sir William Armstrong. In its most familiar form, a rifled breech-loading gun of wrought iron, constructed principally of spirally coiled bars, and occasionally having an inner tube or core of steel; ranging in size from the smallest field-piece up to the 100 pounder; rifled with numerous shallow grooves, which are taken by the expansion of the leaden coating of its projectile. Late experiments however, connected with iron-plated ships are developing muzzle-loading Armstrong guns, constructed on somewhat similar principles, but with simpler rifling, ranging in size up to the 600 pounder weighing 23 tons. ARMY. A large body of disciplined men, with appropriate subdivisions, commanded by a general. A fleet is sometimes called a naval army.--_Flying army_, a small body sent to harass a country, intercept convoys, and alarm the enemy. ARMYE. A early term for a naval armament. ARNOT. A northern name for the shrimp. ARONDEL. A light and swift tartan: probably a corruption of _hirondelle_ (swallow). ARPENT. A French measure of land, equal to 100 square rods or perches, each of 18 feet. It is about 1/7th less than the English acre. ARQUEBUSS. A word sometimes used for carbine, but formerly meant a garrison-piece, carrying a ball of 3-1/2 ounces; it was generally placed in loop-holes. (_See_ HAGBUT.) ARRACK. An Indian term for all ardent liquors, but that which we designate thus is obtained by the fermentation of toddy (a juice procured from palm-trees), of rice, and of sugar. In Turkey arrack is extracted from vine-stalks taken out of wine-presses. ARRAIER. The officer who formerly had the care of the men's armour, and whose business it was to see them duly accoutred. ARRAY. The order of battle.--_To array._ To equip, dress, or arm for battle. ARREARS. The difference between the full pay of a commissioned officer, and what he is empowered to draw for till his accounts are passed. ARREST. The suspension of an officer's duty, and restraint of his person, previous to trying him by a court martial. Seamen in Her Majesty's service cannot be _arrested_ for debts under twenty pounds, and that contracted before they entered the navy. Yet it is held in law, that this affords no exemption from _arrests_ either in civil or criminal suits. ARRIBA. [Sp. pronounced _arriva_]. Aloft, quickly.--_Agir contre son gré, montar arriba_, to mount aloft, which has passed into seamen's lingo as _areevo_, up, aloft, quickly:--mount _areevo_, or go on deck. ARRIBAR, TO. To land, to attain the bank, to arrive. ARRIVE, TO. In the most nautical sense, is to come to any place by water, to reach the shore.