breast pump

pump (pump)

1. an apparatus for drawing or forcing liquids or gases.

2. to draw or force liquids or gases.

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breast pump  a manual or electric pump for abstracting breast milk.

calcium pump  the mechanism of active transport of calcium (Ca2+) across a membrane, as of the sarcoplasmic reticulum of muscle cells, against a concentration gradient; the mechanism is driven by enzymatic hydrolysis of ATP.

intra-aortic balloon pump  (IABP) a pump used in intra-aortic balloon counterpulsation.

proton pump  a system for transporting protons across cell membranes, often exchanging them for other positively charged ions.

sodium pump , sodium-potassium pump the mechanism of active transport, driven by hydrolysis of ATP, by which sodium (Na+) is extruded from a cell and potassium (K+) is brought in, so as to maintain gradients of these ions across the cell membrane.

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breast pump

n.

A suction device for withdrawing milk from the breast.

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breast pump,

a mechanical or electronic device for withdrawing milk from the breast.

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breast pump

Pediatrics A tubular mechanical device that provides gentle suction for milk extraction, used when breasts are engorged or when direct infant feeding is not possible for various physical–eg prematurity or logistic–eg mommy has to work–reasons