suction pump

American  

noun

1. a pump for raising water or other fluids by suction, consisting essentially of a vertical cylinder in which a piston works up and down, both the cylinder and the pump having valves that control the flow of the fluid.

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suction pump British  

noun

1. a pump for raising water or other fluid by suction. It usually consists of a cylinder containing a piston fitted with a flap valve

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Etymology

Origin of suction pump

First recorded in 1815–25

Example Sentences

The small suction pump compresses and expands the patient's chest more vigorously, reduces the risk of broken ribs and allows more blood to flow through the body.

From Time Magazine Archive

In 1907 one Murray Spangler invented a machine which was a combination of a carpet sweeper and suction pump.

From Time Magazine Archive

Fifteen times every minute a suction pump creates a slight vacuum within the respirator.

From Time Magazine Archive

A suction pump driven from the main engine pulled air into the slots and pushed it out astern with the rest of the jet's gases, adding a little to the thrust.

From Time Magazine Archive

Francis, with his interest in theory, had neglected to fasten securely the rubber tubing around his suction pump.

From "Double Helix" by James D. Watson