photothyristor

P3H4O1T1O1T1H4Y4R1I1S1T1O1R1

noun

A light-activated silicon controlled rectifier.

OriginEnglish thyristor ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos →
Scrabble 25
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Meanings

nounphotothyristor (plural photothyristors)

plural photothyristors

  1. businessA light-activated silicon controlled rectifier.

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. Englishthyristor
  9. Englishphotothyristor

From photo- + thyristor.

Full word history & related roots →
Cite this entry
APA

photothyristor. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/photothyristor

MLA

“photothyristor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photothyristor. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “photothyristor,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/photothyristor.

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