/ Dictionary / Index M megafauna: Meaning and Definition of Find definitions for: meg•a•fau•na Pronunciation: (meg'u-fô"nu), [key] — n. Ecol. land animals of a given area that can be seen with the unaided eye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Megaera megaflops 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