GNU Collaborative International Dictionary of English

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  1.       

    Nitrify , v. t. [imp. & p. p. Nitrified ; p. pr. & vb. n. Nitrifying .] [Niter + -fy: cf. F. nitrifer. See Niter.] (Chem.) To combine or impregnate with nitrogen; to convert, by oxidation, into nitrous or nitric acid; to subject to, or produce by, nitrification.
    1913 Webster

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