/ Dictionary / Index O ozono-: Meaning and Definition of Find definitions for: ozono- Pronunciation: [key] a combining form representingin compound words: ozonosphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ozonizer ozonolysis 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