photorespiration

noun

Light-dependent release of carbon dioxide and uptake of oxygen in photosynthetic organisms as an unavoidable side reaction of photosynthesis.

Scrabble 23

Meanings

nounphotorespiration (uncountable)

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. Englishrespiration
  9. Englishphotorespiration

From photo- + respiration.

Full word history & related roots →

Translations

Dutch fotorespiratie
  • fotorespiratierelease of CO2 due to light
Korean 광호흡
  • 광호흡 (gwanghoheup)release of CO2 due to light
Cite this entry
APA

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

MLA

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

Chicago

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

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