suction pump

noun

Definition of suction pump

: a common pump in which the liquid to be raised is pushed by atmospheric pressure into the partial vacuum under a retreating valved piston on the upstroke and reflux is prevented by a check valve in the pipe

Recent Examples of suction pump from the Web

On Day 1, somebody sets the suction pump on a setting that’s too high—and all the blood is quickly sucked through the apparatus.

— charles fishman, Smithsonian, "The Future of Zero-Gravity Living Is Here," 29 June 2017
On the second day, having readjusted the suction pump, Cuttino finds that the device’s new design works perfectly for the first time—the blood is cleanly emptied from its pouch and collected inside the funnel.

— charles fishman, Smithsonian, "The Future of Zero-Gravity Living Is Here," 29 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'suction pump.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.