資料來源 : Webster's Revised Unabridged Dictionary (1913)

Nitrify \Ni"tri*fy\, 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.

資料來源 : WordNet®

nitrify
     v 1: convert into nitric acid, nitrous acid, or nitrate,
          especially with the action of nitrobacteria
     2: treat with nitrogen or a nitrogen compound [syn: {nitrogenize},
         {nitrogenise}]
     3: treat (soil) with nitrates [ant: {denitrify}]
     [also: {nitrified}]

nitrified
     See {nitrify}