'Force pump' definitions:
Definition of 'force pump'
(from WordNet)
noun
Pump used to force a liquid up and expel it under pressure
Definition of 'Force pump'
From: GCIDE
- Force pump \Force" pump`\ (Mach.) (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 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. [1913 Webster]