benzalkonium

B3E1N1Z10A1L1K5O1N1I1U1M3

noun

Any of a class of quaternary ammonium cations containing a benzyl, two methyl and another, longer alkyl group

OriginEnglish onium ← New Latin ammōnium ← Middle English alcofol →
UncommonScrabble 29
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Meanings

nounbenzalkonium (plural benzalkoniums)

plural benzalkoniums

  1. medicineAny of a class of quaternary ammonium cations containing a benzyl, two methyl and another, longer alkyl group

Origin

  1. Arabicلُبَان (lubān)
  2. Proto-Indo-European*yew-
  3. Proto-Indo-European*yéwos
  4. Proto-Indo-Iranian*yáwas
  5. Sanskritयव (yava)bor.?
  6. Proto-Austronesian*zawa
  7. Proto-Malayo-Polynesian*zawader.?
  8. Old Javanesejawa
  9. Old JavaneseJawi
  10. Javaneseꦗꦮꦶ (jawi)
  11. Arabicجَاوَة (jāwa)
  12. Arabicـِيّ (-iyy)
  13. Arabicجَاوِيّ (jāwiyy)
  14. Arabicلُبَان جَاوِيّ (lubān jāwiyy)
  15. Catalanbenjuí
  16. Middle Frenchbenjoin
  17. Englishbenzoin
  18. Englishbenzo-
  19. Englishbenz-
  20. Proto-Indo-European*swel-der.?
  21. Ancient Greekῡ̔́λη (hū́lē)
  22. Englishbenzyl
  23. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
  24. Aramaicכוחלא (kuḥlā)
  25. Arabicكُحْل (kuḥl)
  26. Andalusian Arabicكُحُول (kuḥūl)
  27. Medieval Latinalcoho
  28. Middle Englishalcofol
  29. Englishalc(ohol)
  30. Englishalkyl
  31. New Latinammōnium
  32. Englishammonium
  33. Englishonium
  34. Englishbenzalkonium

From benz(yl) + alk(yl) + -onium (“quaternary ammonium compound”).

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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