/ Dictionary / Index A avenaceous: Meaning and Definition of Find definitions for: av•e•na•ceous Pronunciation: (av"u-nā'shus), [key] — adj. Bot. of or like oats. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ave Maria avenge Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language