/ Dictionary / Index A ammonification: Meaning and Definition of Find definitions for: am•mon•i•fi•ca•tion Pronunciation: (u-mon"u-fi-kā'shun, u-mō"nu-), [key] — n. the act of impregnating with ammonia, as in the manufacture of fertilizer. the state of being so impregnated. the formation of ammonia or its compounds by decomposition of organic matter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ammonification (Thesaurus) ammonic ammonify Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language