a pipe conducting water from a head gate to a waterwheel.
a conduit for conveying water to a power plant.
a sluicelike contrivance used to control the flow of water.
Origin of penstock
First recorded in 1600–10; pen2
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for penstock
Historical Examples of penstock
And that's where you will go back and back and back, as you said about building the penstock?
It is from this flume that the penstock draws water for the wheel.
But the guest grabbed the penstock while it was still vibrating.
Outside should be a penstock, to carry off the superfluous water.
This is a type of wheel mounted on the lower end of a vertical or horizontal shaft, within, or at the bottom, of a penstock.
British Dictionary definitions for penstock
a conduit that supplies water to a hydroelectric power plant
a channel bringing water from the head gates to a water wheel
a sluice for controlling water flow
Word Origin for penstock
C17: from pen ² + 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
A sluice or gate used to control a flow of water.
A pipe or conduit used to carry water to a water wheel or turbine.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.