- a pump that delivers a liquid under pressure, so as to eject it forcibly.
Compare lift pump.
Origin of force pump
First recorded in 1650–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for force pump
If they are produced as by a force-pump, they are an insult.If Winter Don't
This elasticity performs the function of the air-chamber of the force-pump.How it Works
Now the piston in the force-pump is about one inch in diameter.
There was only the sound of the force-pump and the swallowing of the Eddy.Romany of the Snows
I spray with London purple, using a force-pump, and think I have reduced the codling-moth.The Apple
- a pump that ejects fluid under pressureCompare lift pump
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