Medical Dictionary

1pump

noun \ˈpəmp\

Medical Definition of PUMP

1
:  a device that raises, transfers, or compresses fluids or that attenuates gases especially by suction or pressure or both
2
:  heart
3
:  an act or the process of pumping
4
:  an energy source (as light) for pumping atoms or molecules
5
:  a mechanism by which atoms, ions, or molecules are transported across cell membranes—see proton pump, sodium pump
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