nitrogenized

from The Collaborative International Dictionary of English v.0.48

Nitrogenize \Ni"tro*gen*ize\, v. t. [imp. & p. p.
   {Nitrogenized}; p. pr. & vb. n. {Nitrogenizing}.] (Chem.)
   To combine, or impregnate, with nitrogen or its compounds.
   [1913 Webster]