microbacterium

noun
mi·​cro·​bac·​te·​ri·​um | \ -bak-ˈtir-ē-əm How to pronounce microbacterium (audio) \

Medical Definition of microbacterium

1 capitalized : a genus of minute nonmotile gram-positive thermotolerant bacteria closely related to or included in the family Corynebacteriaceae that are common in dairy products and the mammalian intestinal tract
2 plural microbacteria\ -​ē-​ə How to pronounce microbacteria (audio)\ : any of numerous minute heat-resistant bacteria specifically : any bacterium of the genus Microbacterium