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[ek-struh-vur-zhuh n, -shuh n, ek-struh-vur-, -stroh-] /ˌɛk strəˈvɜr ʒən, -ʃən, ˈɛk strəˌvɜr-, -stroʊ-/
Also, extraversion. Psychology.
  1. the act of directing one's interest outward or to things outside the self.
  2. the state of being concerned primarily with things outside the self, with the external environment rather than with one's own thoughts and feelings.
    Compare introversion (def 3).
Pathology. a turning inside out, as of the eyelids or of the bladder.
Origin of extroversion
1650-60; 1915-20 for def 1; extro- + Latin versiōn- (stem of versiō) a turning
Related forms
extroversive, extrovertive, adjective
extroversively, extrovertively, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for extroversion


(psychol) the directing of one's interest outwards, esp towards social contacts
(pathol) a turning inside out of an organ or part
Compare introversion
Derived Forms
extroversive, extraversive, adjective
extroversively, extraversively, adverb
Word Origin
C17: from extro- (variant of extra-, contrasting with intro-) + -version, from Latin vertere to turn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for extroversion

mid-17c., "condition of being turned inside out," noun of action from obsolete verb extrovert (v.) "to turn inside out," from extro- + Latin vertere (see versus). Earliest as a word in mysticism; pathological sense attested from 1836; modern use in psychology attested by 1920.

Online Etymology Dictionary, © 2010 Douglas Harper
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extroversion in Medicine

extroversion ex·tro·ver·sion or ex·tra·ver·sion (ěk'strə-vûr'zhən)

  1. A turning inside out, as of an organ or a part.

  2. Interest in one's environment or in others as opposed to or to the exclusion of oneself.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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