head gate

1 definition found

head gate - WordNet (r) 2.1 (2005) :

  head gate
      n 1: regulator consisting of a valve or gate that controls the
           rate of water flow through a sluice [syn: sluicegate,
           sluice valve, floodgate, penstock, head gate,
           water gate]
      2: a gate upstream from a lock or canal that is used to control
         the flow of water at the upper end