/ Dictionary / Index M malvaceous: Meaning and Definition of Find definitions for: mal•va•ceous Pronunciation: (mal-vā'shus), [key] — adj. belonging to the Malvaceae, the mallow family of plants. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Malus' law malvasia Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language