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nitrification▼(act of nitrifying)noun[UK: ˌnaɪ.trɪ.fɪˈk.eɪ.ʃən] [US: naɪ.trə.fəˈk.eɪ.ʃən]
denitrification [denitrifications]▼(process)noun[UK: diːnˌaɪtrɪfɪkˈeɪʃən] [US: diːnˌaɪtrɪfɪkˈeɪʃən]
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