denitrifying bacterium

noun

Definition of denitrifying bacterium

plural denitrifying bacteria
:any of various bacteria (such as Thiobacillus denitrificans and Paracoccus denitrificans) that bring about denitrification used especially of forms that reduce nitrates to nitrites or nitrites to nitrogen gas (such as many common putrefactive organisms of manure and soil) — see achromobacter

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