- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for penstock
And that's where you will go back and back and back, as you said about building the penstock?Spacehounds of IPC
Edward Elmer Smith
It is from this flume that the penstock draws water for the wheel.Electricity for the farm
Frederick Irving Anderson
But the guest grabbed the penstock while it was still vibrating.When Egypt Went Broke
Outside should be a penstock, to carry off the superfluous water.Hints on cheese-making
Thomas Day Curtis
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.Motors
James Slough Zerbe
- 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
C17: from pen ² + stock
- 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.