photoreactivation

noun

pho·​to·​re·​ac·​ti·​va·​tion ˌfō-tō-rē-ˌak-tə-ˈvā-shən How to pronounce photoreactivation (audio)
: repair of DNA (as of a bacterium) especially by a light-dependent enzymatic reaction after damage by ultraviolet irradiation
photoreactivating adjective

Examples of photoreactivation 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.
Unlike placental mammals, marsupials, such as the Tasmanian Devil, retained a crucial DNA repair kit known as photoreactivation. Gemma Tarlach, Discover Magazine, 11 Oct. 2018

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of photoreactivation was in 1949

Dictionary Entries Near photoreactivation

Cite this Entry

“Photoreactivation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreactivation. Accessed 6 Dec. 2024.

Medical Definition

photoreactivation

noun
pho·​to·​re·​ac·​ti·​va·​tion -rē-ˌak-tə-ˈvā-shən How to pronounce photoreactivation (audio)
: repair of DNA (as of a bacterium) especially by a light-dependent enzymatic reaction after damage by ultraviolet irradiation
photoreactivating adjective

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