dioxygen

D2I1O1X8Y4G2E1N1
/daɪˈɒksɪdʒən/

noun

Diatomic oxygen: the normal allotrope of oxygen, having two atoms per molecule.

“Meronym: oxygen (strict sense)”

Similar
oxygen
OriginEnglish oxygen ← French oxygène ← Ancient Greek γένος (génos) →
RareScrabble 20
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

noundioxygen (uncountable)
  1. uncountablechemistryDiatomic oxygen: the normal allotrope of oxygen, having two atoms per molecule.

    Meronym: oxygen (strict sense)

    Synonyms: oxygen

  2. in compoundsuncountablechemistryTwo atoms of oxygen in a molecule.

Synonyms & antonyms

nounDiatomic oxygen: the normal allotrope of oxygen, having two atoms per molecule.

Similar
oxygen
Also see
molecular oxygenoxygen

Origin

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Hellenic*dwi-
  4. Ancient Greekδῐ- (dĭ-)
  5. Latindi-
  6. Englishdi-
  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. Englishoxygen
  15. Englishdioxygen

From di- + oxygen.

Full word history & related roots →

Translations

Danish dioxygen
  • dioxygenO2
French dioxygène
  • dioxygèneO2

Rhymes & wordplay

Rhymes with dioxygen

trioxygen
All rhymes →
Cite this entry
APA

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

MLA

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

Chicago

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

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