Definition of Nitrobacter
1 : a genus of rod- or pear-shaped nitrifying bacteria (family Bradyrhizobiaceae) occurring in soil, securing energy for growth by oxidizing nitrites to nitrates, and growing poorly on organic media
2 nitrobacter plural nitrobacters : any bacterium of the genus Nitrobacter
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Origin and Etymology of nitrobacter
New Latin, from nitr- + -bacter
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