ˌ ̷ ̷ ̷ ̷ˌ ̷ ̷ˈtirēəm noun
Etymology: New Latin, from myc- + Bacterium
1. capitalized : a genus of nonmotile acid-fast aerobic bacteria (family Mycobacteriaceae) that are usually slender and difficult to stain and that include forms causing tuberculosis and leprosy as well as numerous purely saprophytic forms
2. : any bacterium of Mycobacterium or a closely related genus