/ Dictionary / Index M musaceous: Meaning and Definition of Find definitions for: mu•sa•ceous Pronunciation: (my-zā'shus), [key] — adj. belonging to the Musaceae, the banana family of plants. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mus. Musaf* Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language