standpipe

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A large vertical pipe into which water is pumped in order to produce a desired pressure.

Century Dictionary and Cyclopedia

1. n. A vertical pipe erected at a well or reservoir, into which water is forced by mechanical means in order to obtain a head-pressure sufficient to convey it to a distance.
2. n. A small pipe inserted into an opening in a water-main.
3. n. An upright gas-pipe connecting the retort and the hydraulic main.
4. n. In a steam-engine, a boiler supply-pipe elevated enough to cause water to flow into the boiler in spite of the pressure of steam.
5. n. A pipe on the eduction-pipe of a steam-pump to absorb the concussions due to the pulsation and irregularities caused by the necessary use of bends and changes in the direction of pipes.
6. n. An upright pipe, open at the top, used in connection with a hot-water heating system to allow room for the expansion of the water when heated; an expansion-pipe.
7. n. A portable pipe used to afford a high head of water at fires. One section of a pipe is secured to trunnions, while other sections are kept in a rack, and attached when required. When the hose is coupled, the long pipe is raised by means of a wheel, and the lower end is connected with the water-supply. Another more recent form is a derrick, elevated by two cylinders and pistons analogous in construction to these parts in a steam-engine; but the pistons are moved by the pressure of carbonic acid gas, generated, immediately as wanted, from the reaction of sulphuric acid upon a solution of sodium bicarbonate in a suitable generator. The pipe is elevated above the derrick by a wire rope, pulleys, and a hand-winch. A movable butt or nozle, which can be inclined to any desired angle up or down, or turned in any direction horizontally, is controlled by a man on the lower platform of the derrick, and a copious stream can thus be poured into or upon the top of a tall building. Also called water-tower.
8. n. A fixed vertical pipe for furnishing water to the upper part of a high building in case of fire. The stand-pipe may be connected to a high-pressure water-main or may be dependent on a hose from a fire-engine for its supply.

Wiktionary

1. n. A vertical pipe into which water is pumped so that a desired pressure is available at the bottom.
2. n. The water supply of a building for the use of firefighters.

GNU Webster's 1913

1. n. A vertical pipe, open at the top, between a hydrant and a reservoir, to equalize the flow of water; also, a large vertical pipe, near a pumping engine, into which water is forced up, so as to give it sufficient head to rise to the required level at a distance.
2. n. A supply pipe of sufficient elevation to enable the water to flow into the boiler, notwithstanding the pressure of the steam.

WordNet 3.0

1. n. a vertical pipe