pentacyclic

P3E1N1T1A1C3Y4C3L1I1C3

adjective

Having five rings, especially five fused rings as in many triterpenoids.

OriginEnglish cyclic ← Classical Latin cyclicus ← French cyclique →
Scrabble 22
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectivepentacyclic (not comparable)
  1. not comparablechemistryHaving five rings, especially five fused rings as in many triterpenoids.
  2. not comparablebiologyOf a flower: composed of five whorls or organs.

Origin

  1. Proto-Indo-European*pénkʷe
  2. Proto-Hellenic*pénkʷe
  3. Ancient Greekπέντε (pénte)
  4. Ancient Greekπεντᾰ- (pentă-)
  5. Englishpenta-
  6. Proto-Indo-European*kʷelh₁-redup.
  7. Proto-Indo-European*kʷékʷlos
  8. Proto-Hellenic*kʷókʷlos
  9. Proto-Hellenic*kúklos
  10. Ancient Greekκύκλος (kúklos)
  11. Ancient Greekκυκλῐκός (kuklĭkós)
  12. Classical Latincyclicu
  13. Middle Frenchcyclique
  14. Frenchcyclique
  15. Classical Latincyclicus
  16. Englishcyclic
  17. Englishpentacyclic

From penta- + cyclic.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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