'nitrobacteria' definitions:

Definition of 'nitrobacteria'

From: WordNet
noun
Soil bacteria that convert nitrites to nitrates [syn: nitric bacteria, nitrobacteria]

Definition of 'nitrobacteria'

From: GCIDE
  • nitrobacteria \nitrobacteria\ n. Soil bacteria that convert nitrites to nitrates.
  • Syn: nitric bacteria. [WordNet 1.5]