Bacteria
Definition of Bacteria:
A large group of single-cell microorganisms. Some cause infections and disease in animals and humans. The singular of bacteria is bacterium.

Any organism assigned to the kingdom Bacteria.

Unicellular, prokaryotic organisms that reproduce by cell division and usually have cell walls; can be shaped like spheres, rods or spirals and can be found in virtually any environment.
Bacteria is part of the Organisms group
Bacteria is also know as:
Bacterium
Related Terms
Actinobacteria
Bacteroidetes
Chlamydiae
Firmicutes
Fusobacteria
Proteobacteria
Spirochaetes