photochemical
adjective
pho·to·chem·i·cal
ˌfō-tō-ˈke-mi-kəl 
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
Examples of photochemical in a Sentence
Recent Examples on the Web
Not the good, high-altitude ozone that shields us from dangerous UV light, but bad ozone, hovering right above ground level — stinking, brownish, grayish photochemical smog.
—
Patt Morrison, Los Angeles Times, 26 Mar. 2026
The museum made a black and white photochemical preservation in 1980.
—Mike Barnes, HollywoodReporter, 29 Jan. 2026
The camera includes more than a dozen tasteful, but characterful, tones that draw inspiration from photochemical film stocks.
—PC Magazine, 4 Sep. 2025
Nitrogen oxides are inherent to most combustion engines and are contributors to photochemical smog.
—Marshall Shepherd, Forbes.com, 20 July 2025
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Patt Morrison, Los Angeles Times, 26 Mar. 2026
The museum made a black and white photochemical preservation in 1980.
—Mike Barnes, HollywoodReporter, 29 Jan. 2026
The camera includes more than a dozen tasteful, but characterful, tones that draw inspiration from photochemical film stocks.
—PC Magazine, 4 Sep. 2025
Nitrogen oxides are inherent to most combustion engines and are contributors to photochemical smog.
—Marshall Shepherd, Forbes.com, 20 July 2025
See All Example Sentences for photochemical
Cite this Entry
“Photochemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photochemical. Accessed 4 Apr. 2026.
Copy CitationMedical Definition
photochemical
adjective
pho·to·chem·i·cal
ˌfōt-ō-ˈkem-i-kəl
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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