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

Cite this Entry

“Photoreaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreaction. Accessed 6 Dec. 2022.

Medical Definition

photoreaction

noun

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