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[ih-nish-ee-ey-shuh n] /ɪˌnɪʃ iˈeɪ ʃən/
formal admission or acceptance into an organization or club, adult status in one's community or society, etc.
the ceremonies or rites of admission.
Compare rite of passage.
the act of initiating.
the fact of being initiated.
Origin of initiation
1575-85; < Latin initiātiōn- (stem of initiātiō). See initiate, -ion
Related forms
preinitiation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for initiation
  • Country club initiation fees tend to be one of those closely held secrets that rarely see the public light.
  • Think only of the initiation into fraternity and sorority houses.
  • The driver's license is the initiation rite into adulthood.
  • These variables influence spike initiation and weight adjustment.
  • Considering how these flows begin falls under the term initiation mechanisms.
  • Look, every gang worth its colors has initiation rites.
  • Regardless of who were to prevail the risks are too great to justify the initiation of such an adventure.
  • Where the skin is dark, tattooing has given way to scarification as a form of initiation into adulthood and beauty.
  • The second limitation would have to be initiation of the device.
  • All this initiation are nothing to do with foreign influence.
British Dictionary definitions for initiation


the act of initiating or the condition of being initiated
the often secret ceremony initiating new members into an organization
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 initiation

1580s, from Middle French initiation or directly from Latin initiationem (nominative initiatio) "participation in secret rites," noun of action from past participle stem of initiare "originate, initiate," from initium (see initial).

Online Etymology Dictionary, © 2010 Douglas Harper
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initiation in Medicine

initiation in·i·ti·a·tion (ĭ-nĭsh'ē-ā'shən)

  1. The act or an instance of initiating.

  2. The condition of being initiated.

  3. The first stage of tumor induction by a carcinogen in which cells are altered so that they are likely to form a tumor upon subsequent exposure to a promoting agent.

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