Cite
 

Meaning of pumping

pump•ing

Pronunciation: (pum'ping), [key]
— n.
  1. the act or process of pumping or the action of a pump.
  2. rapid change in the height of the column in a mercury barometer, resulting from fluctuations in the surrounding air pressure.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: