photochemical

adjective
pho·​to·​chem·​i·​cal | \ ˌfō-tō-ˈke-mi-kəl How to pronounce photochemical (audio) \

Definition of photochemical

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

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Other Words from photochemical

photochemically \ ˌfō-​tō-​ˈke-​mi-​k(ə-​)lē How to pronounce photochemical (audio) \ adverb

Examples of photochemical in a Sentence

Recent Examples on the Web 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 In the upper atmospheres of both worlds, photochemical reactions from the Sun destroy ammonia, creating nitrogen gas and hydrogen. Ethan Siegel, Forbes, 25 June 2021 Each star emits a unique spectrum of light that interacts with the atmospheres of orbiting planets and causes photochemical reactions. Meghan Herbst, Wired, 4 Mar. 2021 That's because hotter weather speeds up the photochemical reactions that turn pollutants from vehicle tailpipes and other sources into ozone, the invisible, lung-damaging gas in summer smog. Susanne Rust And Tony Barboza Los Angeles Times, Star Tribune, 13 Sep. 2020 But these materials also present a challenge for conservationists, since the materials tend to undergo color changes and structural damage due to photochemical reactions. Jennifer Ouellette, Ars Technica, 21 May 2020 In addition to methane, trees can emit what are known as volatile organic compounds, which are themselves not greenhouse gases, but can interact with other gases in the atmosphere to cause ozone and photochemical smog. Denise Chow, NBC News, 11 Nov. 2019 The light produced as these meteors streak into our atmosphere at over 130,000 miles a second, way faster than a bullet out of a gun, is due to photochemical reactions. Mike Lynch, Twin Cities, 11 Aug. 2019 Some methane comes from photochemical reactions in their foliage. Fred Pearce, WIRED, 9 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photochemical.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of photochemical

1857, in the meaning defined at sense 1

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Time Traveler for photochemical

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The first known use of photochemical was in 1857

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Dictionary Entries Near photochemical

Photocharger

photochemical

photochemigraphy

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Cite this Entry

“Photochemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photochemical. Accessed 24 Oct. 2021.

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More Definitions for photochemical

photochemical

adjective
pho·​to·​chem·​i·​cal | \ ˌfōt-ō-ˈkem-i-kəl How to pronounce photochemical (audio) \

Medical Definition of photochemical

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

Other Words from photochemical

photochemically \ -​k(ə-​)lē How to pronounce photochemical (audio) \ adverb

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