/ Dictionary / Index C coccobacillus: Meaning and Definition of Find definitions for: coc•co•ba•cil•lus Pronunciation: (kok"ō-bu-sil'us), [key] — pl. -cil•li a spherelike bacillus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coccobacillus (Thesaurus) coccidium coccoid Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language