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penstock

noun

Synonyms of penstock

a long hollow cylinder for carrying a substance (as a liquid or gas)
  • a penstock carried water for the waterwheel

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The first known use of penstock was in 1543

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“Penstock.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/penstock. Accessed 4 Dec. 2020.

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