/ Dictionary / Index O ozonolysis: Meaning and Definition of Find definitions for: o•zo•nol•y•sis Pronunciation: (ō"zu-nol'u-sis, ō"zō-), [key] — n. Chem. the reaction of ozone with hydrocarbons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ozono- ozonous Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language