/ Dictionary / Index B bacillary: Meaning and Definition of Find definitions for: bac•il•lar•y Pronunciation: (bas'u-ler"ē, bu-sil'u-rē), [key] — adj. of or like a bacillus; rod-shaped. characterized by bacilli. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bacillary (Thesaurus) bacill- bacillary dysentery Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language