heptaoxide

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A form of heptoxide — any oxide containing seven oxygen atoms in each molecule

OriginEnglish oxide ← French oxide ← Latin acidu →
Scrabble 23
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Meanings

nounheptaoxide (plural heptaoxides)

plural heptaoxides

  1. alternativeAlternative form of heptoxide.

Origin

  1. Proto-Afroasiatic*sṗɣ?
  2. Proto-Semitic*šabʕ-bor.?
  3. Proto-Indo-European*septḿ̥
  4. Proto-Hellenic*heptə́
  5. Ancient Greekἑπτᾰ́ (heptắ)
  6. Englishhepta-
  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. Englishheptaoxide

From hepta- + oxide.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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