Definition of ion pump in English:

ion pump

noun

  • 1Physics Chemistry
    A device for removing gas molecules from a space by ionizing them and applying a potential difference.

  • 2Physics Chemistry Biology
    A cellular system, especially a transmembrane protein, which transports specific ions across a cell membrane or other biological membrane; frequently with distinguishing word denoting the ion or ions concerned.

Origin

1950s; earliest use found in Vacuum.