/ Dictionary / Index A ammonolysis: Meaning and Definition of Find definitions for: am•mo•nol•y•sis Pronunciation: (am"u-nol'u-sis), [key] — pl. -ses decomposition in which ammonia is resolved into other compounds by being a source of H and NH. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ammonoid ammonolyze Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language