Penstock

noun

Definitions

Noun
  1. 1
    A sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.

    "It amazes him still, this effortless journey powered by the fall of water. Water surging through tunnel and penstock."

  2. 2
    conduit that carries a rapid flow of water controlled by a sluicegate wordnet
  3. 3
    The barrel of a wooden pump.
  4. 4
    regulator consisting of a valve or gate that controls the rate of water flow through a sluice wordnet

Etymology

Perhaps from pen (“an enclosure”) + stock.

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