proteobacterium


Also found in: Dictionary, Wikipedia.

proteobacterium

(prō′tē-ō-băk-tîr′ē-əm)
n. pl. proteobac·teria (-tîr′ē-ə)
Any of numerous gram-negative bacteria of the phylum Proteobacteria, including E. coli, the agrobacteria, many nitrogen-fixing bacteria, and many pathogens, such as salmonella.