/ Dictionary / Index A actinobacillosis: Meaning and Definition of Find definitions for: ac•tin•o•bac•il•lo•sis Pronunciation: (ak-tin"ō-bas"u-lō'sis, ak"tu-nō-), [key] — n. Vet. Pathol. an infectious disease of cattle, domestic animals, and occasionally humans, resembling actinomycosis and caused by the bacterium Actinobacillus lignieresii. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. actino- actinobacillus Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language