D defs.my
Entry 2 senses Webster, 1913

Standpipe

/(-pīp`)/ · Stand·pipe · IPA
01 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 pum…
  1. 1.
    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.(Engin.)
  2. 2.
    A supply pipe of sufficient elevation to enable the water to flow into the boiler, notwithstanding the pressure of the steam.(Steam Boiler)