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See more synonyms for reactivate on Thesaurus.com
verb (used with object), re·ac·ti·vat·ed, re·ac·ti·vat·ing.
  1. to render active again; revive.
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verb (used without object), re·ac·ti·vat·ed, re·ac·ti·vat·ing.
  1. to be active again.
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Origin of reactivate

First recorded in 1900–05; re- + activate
Related formsre·ac·ti·va·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for reactivate

revive, revivify, recrudesce

Examples from the Web for reactivate

Historical Examples of reactivate

  • If Venex 17's head had been severed for less than three weeks he could reactivate it.

    The Velvet Glove

    Harry Harrison

  • My thought then, as I explained to Fles, was to reactivate the factory and sell my product to the sightseers.

British Dictionary definitions for reactivate


  1. (tr) to make (something) active or functional again
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Derived Formsreactivation, noun
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 reactivate


1902, from re- "back, again" + activate. Related: Reactivated; reactivating; reactivation.

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Online Etymology Dictionary, © 2010 Douglas Harper

reactivate in Medicine


  1. To make active again.
  2. To restore the ability to function or the effectiveness of.
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Related formsre•ac′ti•vation n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.