单词	denitrification
释义	denitrification noun de·​ni·​tri·​fi·​ca·​tion (ˌ)dē-ˌnī-trə-fə-ˈkā-shən  : the loss or removal of nitrogen or nitrogen compounds specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air denitrifier (ˌ)dē-ˈnī-trə-ˌfī-ər  noun denitrify (ˌ)dē-ˈnī-trə-ˌfī  transitive verb Example Sentences Recent Examples on the Web One worrying sign is that each trawl decreased denitrification more than the previous trawl. Erik Stokstad, Science | AAAS, 3 Mar. 2020 Ultimately, officials say, Suffolk County needs recurring revenue to subsidize new sewers and individual denitrification units, whether a surcharge on water bills or some other tax. Lisa W. Foderaro, New York Times, 8 May 2017 Word History First Known Use 1883, in the meaning defined above Medical Definition denitrification noun de·​ni·​tri·​fi·​ca·​tion (ˌ)dē-ˌnī-trə-fə-ˈkā-shən  : the loss or removal of nitrogen or nitrogen compounds specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air
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