spirocyclononane

noun

A divalent radical in which a cyclononane ring is fused to another ring at a single carbon atom, the two rings being more or less at right angles to one another.

OriginEnglish cyclononane ← Latin spīra ← Ancient Greek σπεῖρα (speîra) →
Scrabble 25
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Meanings

nounspirocyclononane (plural spirocyclononanes)

plural spirocyclononanes

  1. chemistryA divalent radical in which a cyclononane ring is fused to another ring at a single carbon atom, the two rings being more or less at right angles to one another.

Origin

  1. Proto-Indo-European*sper-
  2. Proto-Indo-European*sper-yeh₂-
  3. Ancient Greekσπεῖρα (speîra)
  4. Latinspīra
  5. Englishspiro-
  6. Englishcyclononane
  7. Englishspirocyclononane

From spiro- + cyclononane.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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