DENITRIFY Meaning of DENITRIFY in English [ di:'nʌɪtrɪfʌɪ ]■ verb ( denitrifies , ~ing , denitrified ) remove the nitrates or nitrites from (soil, water, etc.) by chemical reduction.Derivativesdenitrification noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004