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

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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, "‘Energy’ Review: The Path to Power," 21 June 2018 The penstock flows powered the turbines that turned shafts activating the top-side generators. Charles R. Morris, WSJ, "‘Energy’ Review: The Path to Power," 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,, "Oroville Dam spillway had two dozen problems that may have led to mass failure, report says," 10 May 2017 Equipment: An intake gate called a penstock, valves and pressure gauges, turbine, switchgear, inverter, and electronics. Popular Mechanics Editors, Popular Mechanics, "How to Make Your Own Power," 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.

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First Known Use of penstock

1543, in the meaning defined at sense 1

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Time Traveler for penstock

Time Traveler

The first known use of penstock was in 1543

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Cite this Entry

“Penstock.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2020.

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Rhyming Dictionary: Words that rhyme with penstock

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