pho·​to·​ca·​tal·​y·​sis ˌfōt-ō-kə-ˈtal-ə-səs How to pronounce photocatalysis (audio)
plural photocatalyses -ˌsēz How to pronounce photocatalysis (audio)
: the acceleration of a chemical reaction by radiant energy (as light) acting either directly or by exciting a substance that in turn catalyzes the main reaction compare photoinactivation sense 1

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Cite this Entry

“Photocatalysis.” Medical Dictionary, Merriam-Webster, Accessed 27 Sep. 2023.

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