Meanings
nounphotoaccumulation (countable and uncountable, plural photoaccumulations)
plural photoaccumulations
- countableuncountablebiologyaccumulation (of cells) in the presence of light (typically as part of a circadian rhythm)
Origin
- Proto-Indo-European*bʰeh₂-
- Proto-Indo-European*bʰéh₂os
- Proto-Hellenic*pʰáwos
- Ancient Greekφᾰ́ος (phắos)
- Ancient Greekφῶς (phôs)
- Ancient Greekφωτο- (phōto-)
- Englishphoto-
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Proto-Indo-European*ḱewh₁-
- Proto-Indo-European*ḱuh₁mósder.?
- Latincumulus
- Latincumulō
- Latinaccumulō
- Latinaccumulātiō
- Middle Frenchaccumulation
- Latinaccumulātiō
- Middle Englishacumulacyon
- Englishaccumulation
- Englishphotoaccumulation
From photo- + accumulation.
Full word history & related roots →Cite this entry
APA
photoaccumulation. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/photoaccumulation
MLA
“photoaccumulation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photoaccumulation. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “photoaccumulation,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/photoaccumulation.
Source: photoaccumulation on Wiktionary, CC BY-SA 4.0.