photoreaction

P3H4O1T1O1R1E1A1C3T1I1O1N1

noun

a photochemical reaction

OriginEnglish reaction ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos →
Scrabble 20
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Meanings

nounphotoreaction (plural photoreactions)

plural photoreactions

  1. chemistrya photochemical reaction

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. Englishreaction
  9. Englishphotoreaction

From photo- + reaction.

Full word history & related roots →

Rhymes & wordplay

Rhymes with photoreaction

actiontransactionsatisfactioninteractionreactionattractionfractionextractiontractioncontractionfactiondistractionsubtractionrefractioninfractionredactionimpactiondetractionstupefactionaerifactionalternate actionassuefactionautoextractioncongelifraction
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Cite this entry
APA

photoreaction. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/photoreaction

MLA

“photoreaction.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photoreaction. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “photoreaction,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/photoreaction.

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