VOLTAGE
voltage, electromotive force, emf
(noun) the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
Source: WordNet® 3.1
Etymology
Noun
voltage (countable and uncountable, plural voltages)
(physics) The difference in electrostatic potential between two points in space, especially between live and neutral conductors or the earth.
Source: Wiktionary
Vol"tage, n. (Elec.)
Definition: Electric potential or potential difference, expressed in volts.
Source: Webster’s Unabridged Dictionary 1913 Edition