| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ noun
: excess voltage ; specifically : the excess potential required for the discharge of an ion at an electrode over and above the equilibrium potential of the electrode
| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ noun
: excess voltage ; specifically : the excess potential required for the discharge of an ion at an electrode over and above the equilibrium potential of the electrode
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012