/ Dictionary / Index O -opsia: Meaning and Definition of Find definitions for: -opsia Pronunciation: [key] var. ofhemianopsia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ops opsin Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language