sodium pump
noun
an energy-consuming mechanism in cell membranes that transports sodium ions across the membrane, in exchange for potassium ions or other substances.
Origin of sodium pump
First recorded in 1960–65
Words nearby sodium pump
Medical definitions for sodium pump
sodium pump
n.
A biologic mechanism that uses metabolic energy stored in ATP to achieve active transport of sodium ions across a membrane, such as the cell membrane or the multicellular membranes that make up the walls of renal tubules.