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[ree-ak-tuh-veyt] /riˈæk təˌveɪt/
verb (used with object), reactivated, reactivating.
to render active again; revive.
verb (used without object), reactivated, reactivating.
to be active again.
Origin of reactivate
1900-05; re- + activate
Related forms
reactivation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for reactivate
  • Based on this idea, a comet that ceases spewing material will remain inactive unless something happens to reactivate it.
  • Engineers are now trying to reactivate monitoring systems, such as those measuring temperatures of the spent fuel rods.
  • Instead, the west should strain to find ways to redirect its declining fiscal firepower to reactivate domestic credit.
  • It is important, therefore, to understand various species' ability to reactivate anti-predator responses following reintroduction.
  • We are investigating a way to reactivate the fear memory by presenting the stimulus, but without the shock.
  • Alternatively, manufacturers could add a button to fobs that would allow owners to deactivate and reactivate them.
  • New property owners who want to reactivate the original permit shall comply with the following:.
British Dictionary definitions for reactivate


(transitive) to make (something) active or functional again
Derived Forms
reactivation, 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
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Word Origin and History for reactivate

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

Online Etymology Dictionary, © 2010 Douglas Harper
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reactivate in Medicine

reactivate re·ac·ti·vate (rē-āk'tə-vāt')
v. re·ac·ti·vat·ed, re·ac·ti·vat·ing, re·ac·ti·vates

  1. To make active again.

  2. To restore the ability to function or the effectiveness of.

re·ac'ti·va'tion n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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