SINCE 1828
halobacterium
noun
hal·o·bacterium
| \ -lə-\
Definition of halobacterium
1
capitalized
: a genus of halophilic rod or disk-shaped gram-negative aerobic primitive bacteria (family Halobacteriaceae) that live in strongly saline pools in red to orange colonies and that at low oxygen levels synthesize the purple-pigmented protein bacteriorhodopsin
2
: a bacterium of the genus Halobacterium
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