pump

n. [ Akin to D. pomp, G. pumpe, F. pompe; of unknown origin. ] 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. [ 1913 Webster ]

☞ for various kinds of pumps, see Air pump, Chain pump, and Force pump; also, under Lifting, Plunger, Rotary, etc. [ 1913 Webster ]

Circulating pump (Steam Engine), a pump for driving the condensing water through the casing, or tubes, of a surface condenser. --
Pump brake. See Pump handle, below. --
Pump dale. See Dale. --
Pump gear, the apparatus belonging to a pump. Totten. --
Pump handle, the lever, worked by hand, by which motion is given to the bucket of a pump. --
Pump hood, a semicylindrical appendage covering the upper wheel of a chain pump. --
Pump rod, the rod to which the bucket of a pump is fastened, and which is attached to the brake or handle; the piston rod. --
Pump room, a place or room at a mineral spring where the waters are drawn and drunk. [ Eng. ] --
Pump spear. Same as Pump rod, above. --
Pump stock, the stationary part, body, or barrel of a pump. --
Pump well. (Naut.) See Well. [ 1913 Webster ]

v. t. [ imp. & p. p. Pumped p. pr. & vb. n. pumping. ] 1. To raise with a pump, as water or other liquid. [ 1913 Webster ]

2. To draw water, or the like, from; to from water by means of a pump; as, they pumped the well dry; to pump a ship. [ 1913 Webster ]

3. Figuratively, to draw out or obtain, as secrets or money, by persistent questioning or plying; to question or ply persistently in order to elicit something, as information, money, etc. [ 1913 Webster ]

But pump not me for politics. Otway. [ 1913 Webster ]

v. i. To work, or raise water, a pump. [ 1913 Webster ]

n. That which is raised by pumps, or the work done by pumps. [ 1913 Webster ]

The pumpage last year amounted to . . . gallons. Sci. Amer. [ 1913 Webster ]

n. One who pumps; the instrument or machine used in pumping. Boyle. [ 1913 Webster ]

n. [ G. ] A sort of bread, made of unbolted rye, which forms the chief food of the Westphalian peasants. It is acid but nourishing. [ 1913 Webster ]

n. A pompet. [ 1913 Webster ]

Pumpet ball (Print.), a ball for inking types; a pompet. [ 1913 Webster ]

a. & n. from pump. [ 1913 Webster ]

Pumping engine, a steam engine and pump combined for raising water. See Steam engine. [ 1913 Webster ]