MegavoltPronunciation: /ˈmɛɡəˈvoʊɫt/Megavolt (noun)A unit for electric potential equal to one million volts.ExamplesThe lab measured a megavolt across the circuit.A megavolt is equal to one million volts.Related Wordsvoltkilovoltmillivoltmicrovoltmegawattgigavoltteravoltnanovolt