Penstock

from WordNet (r) 3.0 (2006)
penstock
    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: conduit that carries a rapid flow of water controlled by a
       sluicegate [syn: {sluice}, {sluiceway}, {penstock}]
from The Collaborative International Dictionary of English v.0.48
Penstock \Pen"stock\, n. [Etymol. uncertain; perh. fr. pen an
   inclosure + stock.]
   1. A close conduit or pipe for conducting water, as, to a
      water wheel, or for emptying a pond, or for domestic uses.
      [1913 Webster]

   2. The barrel of a wooden pump.
      [1913 Webster]
from Moby Thesaurus II by Grady Ward, 1.0
21 Moby Thesaurus words for "penstock":
      aboideau, air lock, chute, dock gate, eaves trough, flood-hatch,
      floodgate, gate, guide, gutter, head gate, lock, lock gate,
      pentrough, shoot, sluice, sluice gate, tide gate, trough,
      water gate, weir
antiflux / dictionary / Penstock
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