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PUMP
- biological mechanism by which atoms, ions, or molecules are transported across cell membranes compare sodium pump
- to propel liquid by a motor [v -ED, -ING, -S]
- a device that raises, transfers, delivers, or compresses fluids or that attenuates gases especially by suction or pressure or both
- art
- to cause to flow by means of a pump (a device for moving fluids) [v PUMPED, PUMPING, PUMPS] : PUMPABLE [adj]
- act or the process of pumping
- energy source (as light) for pumping atoms or molecules