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penstock

[pen-stok] /ˈpɛnˌstɒk/
noun
1.
a pipe conducting water from a head gate to a waterwheel.
2.
a conduit for conveying water to a power plant.
3.
a sluicelike contrivance used to control the flow of water.
Origin of penstock
1600-1610
1600-10; pen2 + stock
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for penstock

penstock

/ˈpɛnˌstɒk/
noun
1.
a conduit that supplies water to a hydroelectric power plant
2.
a channel bringing water from the head gates to a water wheel
3.
a sluice for controlling water flow
Word Origin
C17: from pen² + stock
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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penstock in Science
penstock
  (pěn'stŏk')   
  1. A sluice or gate used to control a flow of water.

  2. A pipe or conduit used to carry water to a water wheel or turbine.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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