- voltage, electromotive force, emf - the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
--1 is a kind of electrical phenomenon
- electric potential, potential, potential difference, potential drop, voltage - the difference in electrical charge between two points in a circuit expressed in volts
--2 is a kind of electrical phenomenon
--2 has particulars: evoked potential; resting potential