photostimulus

P3H4O1T1O1S1T1I1M3U1L1U1S1

noun

The stimulus involved in photostimulation

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

nounphotostimulus (plural photostimuli)

plural photostimuli

  1. The stimulus involved in photostimulation

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. Englishstimulus
  9. Englishphotostimulus

From photo- + stimulus.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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