/ Dictionary / Index V vidarabine: Meaning and Definition of Find definitions for: vi•dar•a•bine Pronunciation: (vī-dar'u-bīn"), [key] — n. Pharm. an antiviral substance, CHNO, produced by the bacterium Streptomyces antibioticus and used in immunosuppressed patients for the treatment of serious infections caused by herpesviruses. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Vidar vide* 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