/ Dictionary / Index D diplobacillus: Meaning and Definition of Find definitions for: dip•lo•ba•cil•lus Pronunciation: (dip"lō-bu-sil'us), [key] — pl. -cil•i a double bacillus; two bacilli linked end to end. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diplo- diploblastic Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language