/ Dictionary / Index H hypopyon: Meaning and Definition of Find definitions for: hy•po•py•on Pronunciation: (hī-pō'pē-on", hi-), [key] — n. Ophthalm. an effusion of pus into the anterior chamber of the eye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hypoproteinemia hyporchema Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language