/ Dictionary / Index O optotype: Meaning and Definition of Find definitions for: op•to•type Pronunciation: (op'tu-tīp"), [key] — n. Ophthalm. type used on an eye chart. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. optophone opulence Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language