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definitions

rotary pump

noun
  1. a pump for transferring water or other fluids by the rotating action of its component parts, as by the meshing of vanes or screws.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for rotary pump

rotary pump

noun
  1. engineering a pump in which a liquid is displaced through a shaped stator by a shaped rotor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012