pen·​stock | \ ˈpen-ˌstäk How to pronounce penstock (audio) \

Definition of penstock

1 : a sluice or gate for regulating a flow (as of water)
2 : a conduit or pipe for conducting water

Synonyms for penstock


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Examples of penstock in a Sentence

a penstock carried water for the waterwheel
Recent Examples on the Web River water entered the powerhouse and fell down a system of 140-foot vertical pipes, called penstocks, one for each generator. Charles R. Morris, WSJ, 21 June 2018 The penstock flows powered the turbines that turned shafts activating the top-side generators. Charles R. Morris, WSJ, 21 June 2018 The reservoir can also be lowered by discharges through the dam’s power plant, but one of the two power plant outlets, known as penstocks, was shut down for routine maintenance of turbines. Ralph Vartabedian,, 10 May 2017 Equipment: An intake gate called a penstock, valves and pressure gauges, turbine, switchgear, inverter, and electronics. Popular Mechanics Editors, Popular Mechanics, 6 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'penstock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of penstock

1543, in the meaning defined at sense 1

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Time Traveler for penstock

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The first known use of penstock was in 1543

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Cite this Entry

“Penstock.” Dictionary, Merriam-Webster, Accessed 5 Oct. 2022.

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