/ Dictionary / Index B -bacter: Meaning and Definition of Find definitions for: -bacter Pronunciation: [key] a combining form with the meaning “rod,” used primarily in biology to form generic names of bacteria: aerobacter; arthrobacter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bact. bacteremia Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language