actinobacillus

noun
ac·​ti·​no·​ba·​cil·​lus | \ -bə-ˈsil-əs How to pronounce actinobacillus (audio) \

Medical Definition of actinobacillus

1 capitalized : a genus of aerobic gram-negative parasitic bacteria of the family Pasteurellaceae forming filaments resembling streptobacilli — see actinobacillosis
2 plural actinobacilli\ -​ˌī How to pronounce actinobacilli (audio)\ : a bacterium of the genus Actinobacillus