verb (used with object), re·ac·ti·vat·ed, re·ac·ti·vat·ing.

to render active again; revive.

verb (used without object), re·ac·ti·vat·ed, re·ac·ti·vat·ing.

to be active again.


Origin of reactivate

First recorded in 1900–05; re- + activate
Related formsre·ac·ti·va·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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



(tr) to make (something) active or functional again
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.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for reactivate




To make active again.
To restore the ability to function or the effectiveness of.
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.