Medical Definition of electrolyte
1: a nonmetallic electric conductor in which current is carried by the movement of ions
2a: a substance (as an acid, base, or salt) that when dissolved in a suitable solvent (as water) or when fused becomes an ionic conductorb: any of the ions (as of sodium, potassium, calcium, or bicarbonate) that in a biological fluid regulate or affect most metabolic processes (as the flow of nutrients into and waste products out of cells)—used especially in biology and biochemistry
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