/ Dictionary / Index O ozonous: Meaning and Definition of Find definitions for: o•zo•nous Pronunciation: (ō'zu-nus, ō'zō-), [key] — adj. of or containing ozone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ozonolysis ozostomia Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language