Breadcrumb Home > Dictionary > Index E extra-atmospheric: Meaning and Definition of Find definitions for: ex•tra-at•mos•pher•ic Pronunciation: (ek"stru-at"mus-fer'ik, -fēr'-), [key] — adj. outside the earth's atmosphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. extra extra-base hit 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