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 This company also promises full transparency by listing its products’ photochemical analysis reports on their website. Amber Smith, Discover Magazine, 16 Oct. 2022 Friend and Berger looked to war photography for inspiration, less for the photochemical rendition of the work than for the shocking nature of how bodies were twisted and had a ragdoll quality to them. Partner Content, Variety, 29 Dec. 2022 Although some of the pollution consists of ozone, the photochemical product of local air pollution, smoke from the Northern Territories is also contributing. Tom Yulsman, Discover Magazine, 2 July 2014 On Earth, the atmosphere’s protective ozone layer is created in a similar way from heat and sunlight in a photochemical reaction. Taylor Nicioli, CNN, 24 Nov. 2022 The Link printers use instant film for glossy photochemical prints. Jim Fisher, PCMAG, 27 Oct. 2022 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 See More

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.

Word History

First Known Use

1857, in the meaning defined at sense 1

Time Traveler
The first known use of photochemical was in 1857

Dictionary Entries Near photochemical

Cite this Entry

“Photochemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photochemical. Accessed 6 Feb. 2023.

Medical Definition

photochemical

adjective
pho·​to·​chem·​i·​cal ˌfōt-ō-ˈkem-i-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
Last Updated: - Updated example sentences
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