eubacterium

noun (plural eubacteria /-rɪə/)

• 1a bacterium of a large group typically having simple cells with rigid cell walls and often flagella for movement. The group comprises the ‘true’ bacteria and cyanobacteria, as distinct from archaea.

  • Division (or subkingdom) Eubacteria, kingdom Monera; this group is sometimes taken to exclude non-rigid forms such as spirochaetes and mycoplasmas

• 2a bacterium found mainly in the intestines of vertebrates and in the soil.

  • Genus Eubacterium; Gram-positive, anaerobic, rod-shaped bacteria