Bacteria

Meanings

A type, species, or strain of bacterium.
A single celled organism with cell walls but no nucleus or organelles.
An oval bacterium, as distinguished from a spherical coccus or rod-shaped bacillus.

Bacteria: Bacteria (/bækˈtɪəriə/ ; sg.: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large
Coliform bacteria: Coliform bacteria are defined as either motile or non-motile Gram-negative non-spore forming bacilli that possess β-galactosidase to produce acids and
Pathogenic bacteria: Pathogenic bacteria are bacteria that can cause disease. This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless