
• A pump adapted for delivering water at a considerable height above the pump, or under a considerable pressure; in distinction from one which lifts the water only to the top of the pump or delivers it through a spout. See Illust. of Plunger pump, under Plunger. • A pump having a solid piston, or plunger, for drawing and forcing a l...
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http://thinkexist.com/dictionary/meaning/force_pump/

(from the article `pump`) ...outside forces water into the cylinder, whence it is permitted to escape by an outlet valve. Atmospheric pressure alone can force water to a ...
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http://www.britannica.com/eb/a-z/f/45

<machinery> A pump having a solid piston, or plunger, for drawing and forcing a liquid, as water, through the valves; in distinction from a pump having a bucket, or valved piston. ... A pump adapted for delivering water at a considerable height above the pump, or under a considerable pressure; in distinction from one which lifts the water onl...
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http://www.encyclo.co.uk/local/20973
Force' pump` (Machinery) (a) A pump having a solid piston, or plunger, for drawing and forcing a liquid, as water, through the valves; in distinction from a pump having a bucket, or valved piston.
(b) A pump adapted for delivering water at a considerable height above the pump, or under a considerable press...
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http://www.encyclo.co.uk/webster/F/57

[
n] - pump used to force a liquid up and expel it under pressure
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http://www.webdictionary.co.uk/definition.php?query=force%20pump
noun pump used to force a liquid up and expel it under pressure
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https://www.encyclo.co.uk/local/20974

a pump that delivers a liquid under pressure, so as to eject it forcibly. Cf. lift pump.
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https://www.infoplease.com/dictionary/force-pump
No exact match found.