The DICT Development Group

  Hydrant \Hy"drant\, n. [Gr. ? to irrigate, fr. "y`dwr water. See
     Hydra.]
     A discharge pipe with a valve and spout at which water may be
     drawn from the mains of waterworks; a water plug.
     [1913 Webster]

  hydrant
      n 1: a faucet for drawing water from a pipe or cask [syn: water
           faucet, water tap, tap, hydrant]
      2: a discharge pipe with a valve and spout at which water may be
         drawn from the mains of waterworks

  37 Moby Thesaurus words for "hydrant":
     Foamite, acid, automatic sprinkler, carbon tet,
     carbon tetrachloride, carbon-dioxide foam, cock, deck gun,
     deluge set, extinguisher, fire apparatus, fire engine, fire hose,
     fire hydrant, fireplug, foam, foam extinguisher, gate,
     hook-and-ladder, ladder pipe, petcock, plug, pumper, snorkel, soda,
     spigot, sprinkler, sprinkler head, sprinkler system, stopcock,
     super-pumper, tap, valve, water, water cannon, water plug,
     wet blanket