photoreaction

noun
pho·​to·​re·​ac·​tion | \ ˌfō-tō-rē-ˈak-shən How to pronounce photoreaction (audio) \

Definition of photoreaction

: a photochemical reaction

First Known Use of photoreaction

1909, in the meaning defined above

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More Definitions for photoreaction

photoreaction

noun
pho·​to·​re·​ac·​tion | \ -rē-ˈak-shən How to pronounce photoreaction (audio) \

Medical Definition of photoreaction

: a photochemical reaction