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pump 1

1. A machine or device for raising, compressing, or transferring fluids.
2. Physiology A molecular mechanism for the active transport of ions or molecules across a cell membrane.
3. Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
4. Informal The heart.
5. Informal The place where consumers purchase gasoline. Used with the: gas prices rising at the pump.
v. pumped, pump·ing, pumps
1. To cause to flow by means of a pump or pumplike organ or device: Derricks pumped oil out of the ground. The heart pumps blood throughout the body.
2. To draw, deliver, or pour forth: a writer who pumped out a new novel every year.
3. To propel, eject, or insert: pumped new life into the economy.
4. To cause to move with an up-and-down or back-and-forth motion: a bicyclist pumping the pedals; a piston pumping a shaft.
5. To push or pull (a brake or lever, for instance) rapidly: a driver pumping the brakes.
6. To shoot (bullets, for example) at or into: a gunner pumping rounds at a target.
7. Physics To raise (atoms or molecules) to a higher energy level by exposing them to electromagnetic radiation at a resonant frequency.
8. Physiology To transport (ions or molecules) against a concentration gradient by the expenditure of chemically stored energy.
9. To invest (money) repeatedly or persistently in something.
10. To question closely or persistently: pump a witness for secret information.
11. Informal To promote or publicize vigorously: The company pumped its new product on its website.
1. To operate a pump.
2. To move gas or liquid with a pump or a pumplike organ or device.
3. To move up and down or back and forth in a vigorous manner: My legs were pumping as I ran up the stairs.
4. To flow in spurts: Blood was pumping from the wound.
5. Sports To fake a throw, pass, or shot by moving the arm or arms without releasing the ball.
Phrasal Verb:
pump up
1. To inflate with gas by means of a pump: pump up a tire.
2. Slang To fill with enthusiasm, strength, or energy: The lively debate really pumped us up.
3. Sports To be actively involved in a bodybuilding program: athletes pumping up at the gym.
pump iron Sports
To lift weights.

[Middle English pumpe.]

pump′er n.

pump 2

A shoe that has a closed back and is cut low around the toes, usually with heels and no fastenings.

[Origin unknown.]


- The shoes are so named for the sound they make.
See also related terms for shoes.
References in classic literature ?
I gave him the sounding-rod and lay down again, trying to think of various things--but I thought only of the pumps.
He led me to an inner chamber where I beheld a battery of twenty radium pumps any one of which was equal to the task of furnishing all Mars with the atmosphere compound.
We saw the crew of the brig from afar working at the pumps - still pumping on that wreck, which already had settled so far down that the gentle, low swell, over which our boats rose and fell easily without a check to their speed, welling up almost level with her head-rails, plucked at the ends of broken gear swinging desolately under her naked bowsprit.
But the captain, having some unusual reason for believing that rare good luck awaited him in those latitudes; and therefore being very averse to quit them, and the leak not being then considered at all dangerous, though, indeed, they could not find it after searching the hold as low down as was possible in rather heavy weather, the ship still continued her cruisings, the mariners working at the pumps at wide and easy intervals; but no good luck came; more days went by, and not only was the leak yet undiscovered, but it sensibly increased.
10, before anybody was around, and be ready to man the pumps at the proper time, and make the fur fly.
In submarine works, the workman, clad in an impervious dress, with his head in a metal helmet, receives air from above by means of forcing pumps and regulators.
In Sperm-whalemen with any considerable quantity of oil on board, it is a regular semi-weekly duty to conduct a hose into the hold, and drench the casks with sea-water; which afterwards, at varying intervals, is removed by the ship's pumps.
I had worn, when I quitted the ship, a pair of thick pumps, which, from the rough usage they had received in scaling precipices and sliding down gorges, were so dilapidated as to be altogether unfit for use--so, at least, would have thought the generality of people, and so they most certainly were, when considered in the light of shoes.
The Great Pump Room is a spacious saloon, ornamented with Corinthian pillars, and a music-gallery, and a Tompion clock, and a statue of Nash, and a golden inscription, to which all the water-drinkers should attend, for it appeals to them in the cause of a deserving charity.
The hotel, where we rejoined our family, lurked behind a group of lofty elms, and we drank at the town pump before it just for the pleasure of pumping it.
Since you have done my wife and myself the honour of drinking our healths and happiness, I suppose I must acknowledge the same; though, as you all know me, and know what I am, and what my extraction was, you won't expect a speech from a man who, when he sees a Post, says "that's a Post," and when he sees a Pump, says "that's a Pump," and is not to be got to call a Post a Pump, or a Pump a Post, or either of them a Toothpick.
On the twelfth day my throat was so painful that, taking the chance of alarming the Martians, I attacked the creaking rain-water pump that stood by the sink, and got a couple of glassfuls of blackened and tainted rain water.