vacuum pump

noun

1. a pump or device by which a partial vacuum can be produced.

vacuum pump

noun

1. a pump for producing a low gas pressure

Word History and Origins

Origin of vacuum pump¹

First recorded in 1855–60

Example Sentences

A wine vacuum pump removes oxygen from the open bottle to preserve it for longer—it’s the same principle behind most vacuum-sealed foods.

From Popular-Science

This will give a hollow branch which may be cut off at any desired point, and is then ready for connection to the vacuum pump.

From Project Gutenberg

The straight part of the side tube is then constricted ready for fusing off and the whole affair is placed on the vacuum pump.

From Project Gutenberg

From the point of romance, the world may lose; the vacuum pump cannot vie with the pretty milkmaid of the songs.

From Project Gutenberg

I merely removed the air from the jar with a vacuum pump and the little creature passed out of the picture very quickly.

From Project Gutenberg

This is kept hot, and whatever moisture is in the rubber is either evaporated or sucked out by a vacuum pump.

From Project Gutenberg