n. A natural or artificial receptacle or reservoir for holding or storing water or other fluid, most commonly consisting of mason-work sunk in the ground, but sometimes constructed of wood and placed on the tops of houses.n. A vessel made of lead to hold a stock of water for household uses; also, one made of silver, copper, or other metal, to put bottles or glasses in.n. The vessel inclosing the condenser of a condensing steamengine, and containing the injection-water.n. The receptacle into which glass is ladled from the pots to be poured on the table in making plate-glass, or in casting glass; a cuvette.n. In decorative art: A large vessel, generally of pottery or porcelain, shallow in proportion to its length and breadth, and usually oval in plan.n. A tank or receptacle for water, usually hung upon the wall, and serving to give water, by a spigot or tap, for use in washing, etc.: often of faience or of copper, and a very decorative object. Compare fountain in this sense.n. In anatomy, a reservoir or receptacle of some natural fluid of the body.n. In mining, a tank in a deep shaft, serving an upper pump with water from a lower one.