re·​ac·​ti·​va·​tion (ˌ)rē-ˌak-tə-ˈvā-shən How to pronounce reactivation (audio)
plural reactivations
: the act or process of making something active again or becoming active again : the act or process of reactivating or the condition of being reactivated
reactivation of a dormant virus
reactivation of several warships

Example Sentences

Recent Examples on the Web Possible uses of the funds are a scholarship, a hunting recruitment, retention and reactivation (R3) initiative and a state wildlife staff position. Paul A. Smith, Journal Sentinel, 16 July 2022 In New York, Democratic Assemblywoman Anna Kelles said the reactivation of the Greenidge power plant in the Finger Lakes town of Dresden, N.Y., inspired the moratorium legislation. Jimmy Vielkind, WSJ, 22 Apr. 2022 Remove unengaged subscribers or segment them for a reactivation strategy. Erik Huberman, Forbes, 1 Oct. 2021 Just log back into your account before the reactivation period ends. Jacob Siegal, BGR, 26 Apr. 2022 The vision of this area as a regional destination with the reactivation of the hill and sports complexes to the south will enhance our regional draw and family-friendly, safe position in the market. Alex Groth, Milwaukee Journal Sentinel, 2 Mar. 2022 While YouTube was never Trump’s top social platform, the reactivation of his channel will restore his access to the massive video streaming platform, where his account has more than 2.6 million subscribers. Brian Fung, CNN, 17 Mar. 2023 Opponents argue that Russia might construe the programs’ reactivation as a provocation and respond by broadening the scope of its war. Wesley Morgan, Washington Post, 10 Feb. 2023 Targeted memory reactivation with the C69 piano chord reduces the incidence of non-traumatic nightmares and increases the joyousness of dreams. Justin Beal, Harper’s Magazine , 12 Dec. 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'reactivation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of reactivation was in 1903

Dictionary Entries Near reactivation

Cite this Entry

“Reactivation.” Dictionary, Merriam-Webster, Accessed 6 Jun. 2023.

Medical Definition


re·​ac·​ti·​va·​tion -ˌak-tə-ˈvā-shən How to pronounce reactivation (audio)
: the act or process of reactivating or condition of being reactivated

More from Merriam-Webster on reactivation

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!