/ Dictionary / Index M megass: Meaning and Definition of Find definitions for: me•gass Pronunciation: (mu-gas', -gäs'), [key] — n. bagasse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. megasporophyll megastructure 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