photoreduction

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noun

The addition of an electron to a photoexcited species.

OriginEnglish reduction ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos →
Scrabble 22
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Meanings

nounphotoreduction (plural photoreductions)

plural photoreductions

  1. chemistryThe addition of an electron to a photoexcited species.
  2. chemistryAny reduction reaction that takes place in the presence of light.

Origin

  1. Proto-Indo-European*bʰeh₂-
  2. Proto-Indo-European*bʰéh₂os
  3. Proto-Hellenic*pʰáwos
  4. Ancient Greekφᾰ́ος (phắos)
  5. Ancient Greekφῶς (phôs)
  6. Ancient Greekφωτο- (phōto-)
  7. Englishphoto-
  8. Englishreduction
  9. Englishphotoreduction

From photo- + reduction.

Full word history & related roots →
Cite this entry
APA

photoreduction. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/photoreduction

MLA

“photoreduction.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photoreduction. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “photoreduction,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/photoreduction.

Source: photoreduction on Wiktionary, CC BY-SA 4.0.