pump well


From The Collaborative International Dictionary of English v.0.48:

Pump \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.
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   Note: for various kinds of pumps, see Air pump, {Chain
         pump}, and Force pump; also, under Lifting,
         Plunger, Rotary, etc.
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   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.
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.

From The Collaborative International Dictionary of English v.0.48:

Well \Well\, n. [OE. welle, AS. wella, wylla, from weallan to
   well up, surge, boil; akin to D. wel a spring or fountain.
   ????. See Well, v. i.]
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   1. An issue of water from the earth; a spring; a fountain.
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            Begin, then, sisters of the sacred well. --Milton.
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   2. A pit or hole sunk into the earth to such a depth as to
      reach a supply of water, generally of a cylindrical form,
      and often walled with stone or bricks to prevent the earth
      from caving in.
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            The woman said unto him, Sir, thou hast nothing to
            draw with, and the well is deep.      --John iv. 11.
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   3. A shaft made in the earth to obtain oil or brine.
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   4. Fig.: A source of supply; fountain; wellspring. "This well
      of mercy." --Chaucer.
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            Dan Chaucer, well of English undefiled. --Spenser.
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            A well of serious thought and pure.   --Keble.
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   5. (Naut.)
      (a) 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.
      (b) A compartment in the middle of the hold of a fishing
          vessel, made tight at the sides, but having holes
          perforated in the bottom to let in water for the
          preservation of fish alive while they are transported
          to market.
      (c) A vertical passage in the stern into which an
          auxiliary screw propeller may be drawn up out of
          water.
      (d) A depressed space in the after part of the deck; --
          often called the cockpit.
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   6. (Mil.) A hole or excavation in the earth, in mining, from
      which run branches or galleries.
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   7. (Arch.) An opening through the floors of a building, as
      for a staircase or an elevator; a wellhole.
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   8. (Metal.) The lower part of a furnace, into which the metal
      falls.
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   Artesian well, Driven well. See under Artesian, and
      Driven.

   Pump well. (Naut.) See Well, 5
      (a), above.

   Well boring, the art or process of boring an artesian well.
      

   Well drain.
      (a) A drain or vent for water, somewhat like a well or
          pit, serving to discharge the water of wet land.
      (b) A drain conducting to a well or pit.

   Well room.
      (a) A room where a well or spring is situated; especially,
          one built over a mineral spring.
      (b) (Naut.) A depression in the bottom of a boat, into
          which water may run, and whence it is thrown out with
          a scoop.

   Well sinker, one who sinks or digs wells.

   Well sinking, the art or process of sinking or digging
      wells.

   Well staircase (Arch.), a staircase having a wellhole (see
      Wellhole
      (b) ), as distinguished from one which occupies the whole
          of the space left for it in the floor.

   Well sweep. Same as Sweep, n., 12.

   Well water, the water that flows into a well from
      subterraneous springs; the water drawn from a well.
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