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pumping

[ puhm-ping ]
/ ˈpʌm pɪŋ /
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noun

the act or process of pumping or the action of a pump.
Meteorology. rapid change in the height of the column in a mercury barometer, resulting from fluctuations in the surrounding air pressure.

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“Evoke” and “invoke” both derive from the same Latin root “vocāre.”

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Origin of pumping

First recorded in 1590–1600; pump1 + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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