Breadcrumb Home > 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 TrendingHere are the facts and trivia that people are buzzing about. Animal Group Terminology Largest Countries in the World (by Area) Current Events This Week: January 2023 State Abbreviations Dinosaur Fossils (By U.S. State!) The Chinese Zodiac ✖ Related Content Daily Word Quiz: locution Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language