/ Dictionary / Index A arenavirus: Meaning and Definition of Find definitions for: ar•en•a•vi•rus Pronunciation: (är"en-ā'vī"rus), [key] — pl. -rus•es. any of various RNA-containing viruses of the family Arenaviridae, usu. transmitted to humans by contact with excreta of infected rodents. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arenavirus (Thesaurus) arena theater Arendt Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language