/ Dictionary / Index A acerose: Meaning and Definition of Find definitions for: ac•er•ose Pronunciation: (as'u-rōs"), [key] — adj. Bot. needle-shaped, as the leaves of the pine. ac•er•ose Pronunciation: (as'u-rōs"), [key] — adj. resembling chaff. mixed with chaff. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acerose (Thesaurus) acerola acerous Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language