/ Dictionary / Index E extro-: Meaning and Definition of Find definitions for: extro- Pronunciation: [key] var. of(used to contrast with): extrovert. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. extrinsic factor extrorse Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language