photoreaction

noun

pho·​to·​re·​ac·​tion ˌfō-tō-rē-ˈak-shən How to pronounce photoreaction (audio)
: a photochemical reaction

Word History

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of photoreaction was in 1909

Dictionary Entries Near photoreaction

photoradiography

photoreaction

photoreactivation

See More Nearby Entries 

Cite this Entry

“Photoreaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreaction. Accessed 31 Dec. 2024.

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Medical Definition

photoreaction

noun
pho·​to·​re·​ac·​tion -rē-ˈak-shən How to pronounce photoreaction (audio)
: a photochemical reaction
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