prop. n. A family of bacteria living mostly in soils and on dung; called also Polyangiaceae. Syn. -- Polyangiaceae, family Polyangiaceae, family Myxobacteriaceae. [ WordNet 1.5 ]
n. pl. A group of rod-shaped bacteria, some saprophytic or causing diseases. Syn. -- mycobacterium. [ WordNet 1.5 ]