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duplex pump

American  

noun

  1. a pair of direct-acting steam pumps so arranged that each pump begins its working stroke just as the other finishes its working stroke, so that the rate of flow of the fluid is nearly continuous.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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