Definition of pump

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Pump (n.) An hydraulic machine, variously constructed, for raising or transferring fluids, consisting essentially of a moving piece or piston working in a hollow cylinder or other cavity, with valves properly placed for admitting or retaining the fluid as it is drawn or driven through them by the action of the piston..

Lern More About Pump

Plunger :: Plunger (n.) A long solid cylinder, used, instead of a piston or bucket, as a forcer in pumps..
Windbore :: Windbore (n.) The lower, or bottom, pipe in a lift of pumps in a mine..
Pompion :: Pompion (n.) See Pumpion.
Well :: Well (v. i.) An inclosure in the middle of a vessel's hold, around the pumps, from the bottom to the lower deck, to preserve the pumps from damage and facilitate their inspection..
Indicator :: Indicator (n.) An instrument which draws a diagram showing the varying pressure in the cylinder of an engine or pump at every point of the stroke. It consists of a small cylinder communicating with the engine cylinder and fitted with a piston which the varying pressure drives upward more or less against the resistance of a spring. A lever imparts motion to a pencil which traces the diagram on a card wrapped around a vertical drum which is turned back and forth by a string connected with the pist
Syringed :: Syringe (n.) A kind of small hand-pump for throwing a stream of liquid, or for purposes of aspiration. It consists of a small cylindrical barrel and piston, or a bulb of soft elastic material, with or without valves, and with a nozzle which is sometimes at the end of a flexible tube; -- used for injecting animal bodies, cleansing wounds, etc..
Air Vessel :: Air vessel () A vessel, cell, duct, or tube containing or conducting air; as the air vessels of insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The air vessels of insects are called tracheae, of plants spiral vessels..
Pumpage :: Pumpage (n.) That which is raised by pumps, or the work done by pumps..
Pallet :: Pallet (n.) One of the series of disks or pistons in the chain pump.
Pumpernickel :: Pumpernickel (n.) A sort of bread, made of unbolted rye, which forms the chief food of the Westphalian peasants. It is acid but nourishing..
Brake :: Brake (v. t.) An extended handle by means of which a number of men can unite in working a pump, as in a fire engine..
Pepo :: Pepo (n.) Any fleshy fruit with a firm rind, as a pumpkin, melon, or gourd. See Gourd..
Sump :: Sump (n.) The cistern or reservoir made at the lowest point of a mine, from which is pumped the water which accumulates there..
Sucker :: Sucker (n.) The embolus, or bucket, of a pump; also, the valve of a pump basket..
Force Pump :: Force pump () 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..
Pumpkin :: Pumpkin (n.) A well-known trailing plant (Cucurbita pepo) and its fruit, -- used for cooking and for feeding stock; a pompion..
Pie :: Pie (n.) An article of food consisting of paste baked with something in it or under it; as, chicken pie; venison pie; mince pie; apple pie; pumpkin pie..
Sprent :: Sprengel pump () A form of air pump in which exhaustion is produced by a stream of mercury running down a narrow tube, in the manner of an aspirator; -- named from the inventor..
Cataract :: Cataract (n.) A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.
Scaphognathite :: Scaphognathite (n.) A thin leafike appendage (the exopodite) of the second maxilla of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity.
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