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penstock
 
Noun penstock has 2 senses
  1. sluicegate, sluice valve, floodgate, penstock, head gate, water gate - regulator consisting of a valve or gate that controls the rate of water flow through a sluice
    --1 is a kind of regulator
    --1 is a part of sluice, sluiceway, penstock
  2. sluice, sluiceway, penstock - conduit that carries a rapid flow of water controlled by a sluicegate
    --2 is a kind of conduit
    --2 has parts:
     sluicegate, sluice valve, floodgate, penstock, head gate, water gate
penstemon linarioides penstemon newberryi penstemon palmeri penstemon parryi penstemon rupicola penstemon rydbergii penstemon serrulatus penstemon whippleanus penstock penstrating pent-up pent pent up pentacle pentacost pentad pentadactyl

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