/ Dictionary / Index H hyperoxide: Meaning and Definition of Find definitions for: hy•per•ox•ide Pronunciation: (hī"pu-rok'sīd, -sid), [key] — n. Chem. superoxide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyperoxemia hyperparasite Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language