cetrimonium

C3E1T1R1I1M3O1N1I1U1M3

noun

The cetyltrimethylammonium radical.

OriginEnglish onium ← New Latin ammōnium ← German Methy →
Scrabble 17
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Meanings

nouncetrimonium (plural cetrimoniums)

plural cetrimoniums

  1. medicineThe cetyltrimethylammonium radical.

Origin

  1. Ancient Greekκῆτος (kêtos)
  2. Latincētus
  3. Proto-Indo-European*swel-der.?
  4. Ancient Greekῡ̔́λη (hū́lē)
  5. Englishcet(yl)
  6. Proto-Indo-European*tréyes
  7. Proto-Indo-European*tri-
  8. Proto-Italic*tri-
  9. Latintri-
  10. Englishtri-
  11. Proto-Indo-European*médʰu
  12. Proto-Hellenic*métʰu
  13. Ancient Greekμέθυ (méthu)
  14. Ancient Greekῡ̔́λη (hū́lē)
  15. GermanMethy
  16. Englishmethyl
  17. Englishtrim(ethyl)
  18. New Latinammōnium
  19. Englishammonium
  20. Englishonium
  21. Englishcetrimonium

From cet(yl) + trim(ethyl) + -onium (“quaternary ammonium compound”).

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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