/ Dictionary / Index M megaelectron volt: Meaning and Definition of Find definitions for: meg•a•e'lec•tron volt" Pronunciation: (meg"u-i-lek'tron), [key] — Physics. Physics. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. megadose Megaera Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language