reactivation

noun

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

Examples of reactivation in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The most obvious explanation would be that if the reactivation of the virus during a shingles episode predisposes someone to developing dementia, preventing reactivation with the vaccine would reduce the risk of developing dementia. Christopher M. Worsham, Time, 4 Apr. 2025 Suppressing the reactivation of the varicella zoster virus reduces dementia onset. John Timmer, ArsTechnica, 3 Apr. 2025 It is recommended for all adults 50 and older to prevent painful bouts of shingles, a reactivation of the virus that causes chickenpox. Brenda Goodman, CNN Money, 28 Mar. 2025 The council directed city officials to review the Safe Routes to School report and request a reactivation of the committee to examine the concerns for possible future action. Amy Wilde, Twin Cities, 7 Feb. 2025 See All Example Sentences for reactivation

Word History

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of reactivation was in 1903

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Cite this Entry

“Reactivation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reactivation. Accessed 13 Apr. 2025.

Medical Definition

reactivation

noun
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

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