/ Dictionary / Index O oxyneurine: Meaning and Definition of Find definitions for: ox•y•neu•rine Pronunciation: (ok"si-noor'ēn, -in, -nyoor'-), [key] — n. Chem. betaine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oxymorphone oxyphilic Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language