photocatalysis

[foh-toh-kuh-tal-i-sis]

noun, plural pho·to·ca·tal·y·ses [foh-toh-kuh-tal-i-seez] /ˌfoʊ toʊ kəˈtæl ɪˌsiz/. Chemistry.

the acceleration or retardation of the reaction rate in chemical reactions by light.

Origin of photocatalysis

First recorded in 1910–15; photo- + catalysis

Related formspho·to·cat·a·lyt·ic

[foh-toh-kat-l-it-ik] /ˌfoʊ toʊˌkæt lˈɪt ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for photocatalysis

photocatalysis

noun plural -ses (-siːz)

the alteration of the rate of a chemical reaction by light or other electromagnetic radiation

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