photoaffinity

P3H4O1T1O1A1F4F4I1N1I1T1Y4

noun

the photoexcitation of a molecular entity (normally associated with a biomolecule) in order to attach a label

OriginEnglish affinity ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos →
RareScrabble 27
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Meanings

nounphotoaffinity (uncountable)
  1. uncountablechemistrythe photoexcitation of a molecular entity (normally associated with a biomolecule) in order to attach a label

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. Englishaffinity
  9. Englishphotoaffinity

From photo- + affinity.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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