optoisolator

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US/ˌɑptoʊˈaɪsəleɪtɚ/UK/ˌɒptəʊˈaɪsəleɪtə/

noun

A device that transmits a signal optically between two isolated electronic circuits

Similar
optocouplerphotocoupler
OriginEnglish isolator ← Ancient Greek ὀπτός (optós) ← Proto-Indo-European *h₃ekʷ- →
Scrabble 14
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Meanings

nounoptoisolator (plural optoisolators)

plural optoisolators · alternative opto-isolator

  1. A device that transmits a signal optically between two isolated electronic circuits

    Synonyms: optocoupler, photocoupler

Synonyms & antonyms

nounA device that transmits a signal optically between two isolated electronic circuits

Similar
optocouplerphotocoupler

Origin

  1. Proto-Indo-European*h₃ekʷ-
  2. Ancient Greekὄπωπᾰ (ópōpă)
  3. Ancient Greekὀπτός (optós)
  4. Englishopto-
  5. Englishisolate
  6. Englishisolator
  7. Englishoptoisolator

From opto- + isolator.

Full word history & related roots →

Translations

German Optokoppler
  • Optokopplerdevice that transmits a signal optically
Italian optoisolatore
  • optoisolatoredevice that transmits a signal optically
Cite this entry
APA

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

MLA

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

Chicago

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

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