Nearby words

  1. pumice country,
  2. pumice stone,
  3. pumiceous,
  4. pummel,
  5. pummelo,
  6. pump box,
  7. pump gun,
  8. pump iron,
  9. pump lung,
  10. pump priming

Idioms

    prime the pump,
    1. to increase government expenditure in an effort to stimulate the economy.
    2. to support or promote the operation or improvement of something.
    pump iron. iron(def 29).

Origin of pump

1
1400–50; late Middle English pumpe (noun); cognate with German Pumpe, Dutch pomp

Related forms

pump

2
[puhmp]

noun

a lightweight, low-cut shoe without fastenings for women.
a slip-on black patent leather shoe for men, for wear with formal dress.

Origin of pump

2
First recorded in 1720–30; origin uncertain

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pump


British Dictionary definitions for pump

pump

1

noun

any device for compressing, driving, raising, or reducing the pressure of a fluid, esp by means of a piston or set of rotating impellers
biology a mechanism for the active transport of ions, such as protons, calcium ions, and sodium ions, across cell membranesa sodium pump

verb

(when tr, usually foll by from, out, into, away, etc) to raise or drive (air, liquid, etc, esp into or from something) with a pump or similar device
(tr; usually foll by in or into) to supply in large amountsto pump capital into a project
(tr) to deliver (shots, bullets, etc) repeatedly with great force
to operate (something, esp a handle or lever) in the manner of a pump or (of something) to work in this wayto pump the pedals of a bicycle
(tr) to obtain (information) from (a person) by persistent questioning
(intr; usually foll by from or out of) (of liquids) to flow freely in large spurtsoil pumped from the fissure

Word Origin for pump

C15: from Middle Dutch pumpe pipe, probably from Spanish bomba, of imitative origin

noun

a low-cut low-heeled shoe without fastenings, worn esp for dancing
a type of shoe with a rubber sole, used in games such as tennis; plimsoll

Word Origin for pump

C16: of unknown origin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pump
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for pump

pump

[pŭmp]

n.

A machine or device for raising, compressing, or transferring fluids.
A molecular mechanism for the active transport of ions or molecules across a cell membrane.

v.

To raise or cause to flow by means of a pump.
To transport ions or molecules against a concentration gradient by the expenditure of chemically stored energy.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for pump

pump

[pŭmp]

A device used to raise or transfer fluids. Most pumps function either by compression or suction.
A molecular mechanism for the active transport of ions or molecules across a cell membrane.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.