photoreduction

noun

pho·​to·​re·​duc·​tion ˌfō-tō-ri-ˈdək-shən How to pronounce photoreduction (audio)
: chemical reduction under the influence of radiant energy (such as light) : photochemical reduction
photoreduce
ˌfō-tō-ri-ˈdüs How to pronounce photoreduction (audio)
-ˈdyüs
transitive verb

Word History

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of photoreduction was in 1888

Rhymes for photoreduction

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Browse Nearby Words

photorecording
photoreduction
photorefractive
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Cite this Entry

“Photoreduction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoreduction. Accessed 30 Oct. 2025.

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Medical Definition

photoreduction

noun
pho·​to·​re·​duc·​tion -ri-ˈdək-shən How to pronounce photoreduction (audio)
: chemical reduction under the influence of radiant energy (as light) : photochemical reduction
photoreduce
-ri-ˈd(y)üs How to pronounce photoreduction (audio)
transitive verb
photoreduced; photoreducing
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