duplex pump
noun
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.
Nearby words
duplex chain, duplex house, duplex kidney, duplex lock, duplex process, duplex pump, duplex uterus, duplexer, duplicable, duplicate, duplicate bridge
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019