n. an upright hydrant that can supply large volumes of water to use in fighting a fire. They are commonly placed at intervals at the street edge of a sidewalk, spaced for convenience in suppressing fires in towns.
n. [ Gr. &unr_; to irrigate, fr.
n. [ Hydra + Gr. &unr_; a flower. ] (Zool.) One of the nutritive zooids of a hydroid colony. Also applied to the proboscis or manubrium of a hydroid medusa. See Illust. of Hydroidea. [ 1913 Webster ]