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extroversion

[ek-struh-vur-zhuh n, -shuh n, ek-struh-vur-, -stroh-]
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noun
  1. 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).
  2. Pathology. a turning inside out, as of the eyelids or of the bladder.
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Origin of extroversion

1650–60; 1915–20 for def 1; extro- + Latin versiōn- (stem of versiō) a turning
Related formsex·tro·ver·sive, ex·tro·ver·tive, adjectiveex·tro·ver·sive·ly, ex·tro·ver·tive·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for extroversion

extroversion

extraversion

noun
  1. psychol the directing of one's interest outwards, esp towards social contacts
  2. pathol a turning inside out of an organ or part
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Compare introversion
Derived Formsextroversive or extraversive, adjectiveextroversively or 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

Word Origin and History for extroversion

n.

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.

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Online Etymology Dictionary, © 2010 Douglas Harper

extroversion in Medicine

extroversion

n.
  1. A turning inside out, as of an organ or part.
  2. Interest in one's environment or in others as opposed to or to the exclusion of oneself.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.