Standpipe
Pronunciation : Stand"pipe`
Part of Speech : n.
Definition : 1. (Engin.)
Defn: 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. (Steam Boiler)
Defn: A supply pipe of sufficient elevation to enable the water to flow into the boiler, notwithstanding the pressure of the steam. Knight.
Source : Webster's Unabridged Dictionary, 1913