/ Dictionary / Index A aureus: Meaning and Definition of Find definitions for: au•re•us Pronunciation: (ôr'ē-us), [key] — pl. au•re•i a gold coin and monetary unit of ancient Rome, from Caesar to Constantine I. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Aureomycin au revoir* Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language