/ Dictionary / Index N nitrogenize: Meaning and Definition of Find definitions for: ni•trog•en•ize Pronunciation: (nī-troj'u-nīz", nī'tru-ju-), [key] — -ized, -iz•ing. to combine with nitrogen or add nitrogenous material to. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nitrogenize (Thesaurus) nitrogen-fixing nitrogen mustard Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language