/ Dictionary / Index B biovar: Meaning and Definition of Find definitions for: bi•o•var Pronunciation: (bī'u-vär"), [key] — n. Bacteriol. a group of microorganisms, usually bacteria, that have identical genetic but different biochemical or physiological characters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. biotype biowarfare Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language