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Noun: nitrobacteria  ,nI-trow-bak'teer-ee-u
  1. Soil bacteria that convert nitrites to nitrates
    - nitric bacteria
Noun: nitrobacterium (nitrobacteria)
  1. Any of the bacteria in the soil that take part in the nitrogen cycle; they oxidize ammonium compounds into nitrites or oxidize nitrites into nitrates

Type of: bacteria, bacterium, eubacteria, eubacterium, true bacteria

Part of: genus Nitrobacter, Nitrobacter