Pumping
From Biocrawler, the free encyclopedia.
In telecommunication, pumping is the action of an oscillator that provides cyclic inputs to an oscillating reaction device.
Examples of pumping are the action that results in amplification of a signal by a parametric amplifier, and the action that provides a laser or maser with an input signal at the appropriate frequency to sustain stimulated emission.
In lactation, pumping is the action of extracting milk from a mammalian mammary glands by mechanical means. A milking machine provides this function at commercial dairies, while a breast pump does the same for humans.
