/ Dictionary / Index A acerous: Meaning and Definition of Find definitions for: ac•er•ous Pronunciation: (as'ur-us), [key] — adj. Bot. acerose. a•ce•rous Pronunciation: (ā-sēr'us), [key] — adj. Zool. having no antennae. having no horns. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acerose acervate Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language