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BNC: 29139 COCA: 34333
BNC: 29139 COCA: 34333

photochemical

adjective

pho·​to·​chem·​i·​cal ˌfō-tō-ˈke-mi-kəl How to pronounce photochemical (audio)
1
: of, relating to, or resulting from the chemical action of radiant energy and especially light
photochemical smog
2
: of or relating to photochemistry
photochemical studies
photochemically adverb

Example Sentences

Recent Examples on the Web Professor Lu says the hole took us so long to notice because it wasn’t expected to exist based on conventional photochemical models. Joshua Hawkins, BGR, 6 July 2022 Powered by advanced propellant technology that is VOC exempt, its compounds have low photochemical reactivity. Joseph Deacetis, Forbes, 2 Nov. 2021 And now, sunlight has a critical role, because the many, many photochemical reactions that are needed, at least in the Sutherland chemistry, to bring you up to the level of nucleotides, amino acids, lipids. Quanta Magazine, 1 June 2022 Basically, this means that birds have photoreceptors in their eyes that are sensitive to radical pairs’ photochemical reactions. Daisy Hernandez, Popular Mechanics, 6 Apr. 2022 For example, a brownish-haze called photochemical smog forms in Los Angeles when nitrogen oxide from car exhaust reacts with sunlight in Earth's lower atmosphere. Elizabeth Gamillo, Smithsonian Magazine, 8 Feb. 2022 And half of them are actual photochemical restorations. Chris Willman, Variety, 23 Feb. 2022 This photochemical process occurs on Venus, Earth, Jupiter, and Saturn as well, per Science Alert. Elizabeth Gamillo, Smithsonian Magazine, 8 Feb. 2022 The team used photochemical methods to graft the cavitand receptors onto the surface of a micrometre-scale silicon microcantilever. Simon Hadlington, Scientific American, 19 June 2014 See More

Word History

First Known Use

1857, in the meaning defined at sense 1

Time Traveler
The first known use of photochemical was in 1857
BNC: 29139 COCA: 34333

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