superoxide

S1U1P3E1R1O1X8I1D2E1

noun

A peroxide

Similar
superoxide anion
OriginEnglish oxide ← French oxide ← Latin acidu →
Less commonScrabble 20
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Meanings

nounsuperoxide (plural superoxides)

plural superoxides

  1. chemistryA peroxide
  2. chemistryThe univalent anion, O₂⁻, obtained from molecular oxygen by adding an electron; any compound containing this anion

Synonyms & antonyms

nounthe univalent anion O2-

Similar
superoxide anion
Broader
anion

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Italic*super
  4. Latinsuper
  5. Latinsuper-
  6. Englishsuper-
  7. Proto-Indo-European*h₂eḱ-der.?
  8. Ancient Greekὀξύς (oxús)
  9. Proto-Indo-European*ǵenh₁-
  10. Proto-Indo-European*ǵénh₁os
  11. Proto-Hellenic*génos
  12. Ancient Greekγένος (génos)
  13. Frenchoxygène
  14. Latinacidu
  15. Frenchacide
  16. Frenchoxide
  17. Englishoxide
  18. Englishsuperoxide

From super- + oxide.

Full word history & related roots →

Translations

Finnish superoksidi
  • superoksidiunivalent anion
Italian superossido
  • superossidounivalent anion
Spanish superóxido
  • superóxidounivalent anion
Cite this entry
APA

superoxide. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/superoxide

MLA

“superoxide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/superoxide. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “superoxide,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/superoxide.

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