/ Dictionary / Index B bacteriol.: Meaning and Definition of Find definitions for: bacteriol. Pronunciation: [key] bacteriology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bacterioid bacteriology Related Content Daily Word Quiz: beseech Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language