cyclooctatetraene

/ˌsaɪkləʊˌɒktəˈtɛtɹə.iːn/

noun

An annulene having an eight-membered ring; being nonplanar, it is not aromatic.

OriginEnglish tetra- ← Ancient Greek τετρᾰ- (tetră-) ← Proto-Hellenic *kʷétwores →
Scrabble 26
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Meanings

nouncyclooctatetraene (countable and uncountable, plural cyclooctatetraenes)

plural cyclooctatetraenes

  1. countableuncountablechemistryAn annulene having an eight-membered ring; being nonplanar, it is not aromatic.

Origin

  1. Late Latincyclus
  2. Middle Englishcicle
  3. Englishcycle
  4. Ancient Greekκυκλῐκός (kuklĭkós)
  5. Classical Latincyclicu
  6. Middle Frenchcyclique
  7. Frenchcyclique
  8. Classical Latincyclicus
  9. Englishcyclic
  10. Englishcyclo-
  11. Proto-Indo-European*oḱtṓw
  12. Proto-Hellenic*oktṓ
  13. Ancient Greekὀκτώ (oktṓ)
  14. Ancient Greekὀκτᾰ- (oktă-)
  15. Englishocta-
  16. Proto-Indo-European*kʷetwóres
  17. Proto-Hellenic*kʷétwores
  18. Ancient Greekτέσσᾰρες (téssăres)
  19. Ancient Greekτετρᾰ- (tetră-)
  20. Englishtetra-
  21. Englishcyclooctatetraene

From cyclo- + octa- + tetra- + -ene.

Full word history & related roots →
Cite this entry
APA

cyclooctatetraene. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cyclooctatetraene

MLA

“cyclooctatetraene.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cyclooctatetraene. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “cyclooctatetraene,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cyclooctatetraene.

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