pumping

[ puhm-ping ]
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noun
  1. the act or process of pumping or the action of a pump.

  2. Meteorology. rapid change in the height of the column in a mercury barometer, resulting from fluctuations in the surrounding air pressure.

Origin of pumping

1
First recorded in 1590–1600; pump1 + -ing1

Words Nearby pumping

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

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