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Related to electrochemical gradient: electrochemical proton gradient
rate of increase or decrease of a variable value, or its representative curve.
edge gradient in radiology, the penumbra or partial shadow on a radiograph caused by the three-dimensional shape of an object.
a measure of the tendency of an ion to move passively from one point to another, taking into consideration the differences in its concentration and in the electrical potentials between the two points; commonly expressed as the additional voltage needed to achieve equilibrium.