/ Dictionary / Index C coronavirus: Meaning and Definition of Find definitions for: co•ro•na•vi•rus Pronunciation: (ku-rō'nu-vī"rus), [key] — pl. -rus•es. any of various RNA-containing spherical viruses of the family Coronaviridae, including several that cause acute respiratory illnesses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coronation coroner Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language