arsenobetaine

A1R1S1E1N1O1B3E1T1A1I1N1E1

noun

The formal derivative of betaine in which arsenic replaces the nitrogen atom, chemical formula (CH₃)₃As⁺CH₂COO⁻.

“Arsenobetaine has an unusually low toxicity for an arsenic compound, with an LD₅₀ of over 10g/kg in mice.”

OriginEnglish betaine ← Latin bēta ← Middle English arsenik →
Scrabble 15
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Meanings

nounarsenobetaine (plural arsenobetaines)

plural arsenobetaines

  1. chemistryThe formal derivative of betaine in which arsenic replaces the nitrogen atom, chemical formula (CH₃)₃As⁺CH₂COO⁻.

    Arsenobetaine has an unusually low toxicity for an arsenic compound, with an LD₅₀ of over 10g/kg in mice.

Origin

  1. Proto-Indo-European*ǵʰelh₃-
  2. Proto-Indo-European*ǵʰl̥h₃enyom
  3. Proto-Indo-Iranian*ȷ́ʰr̥Hanyam
  4. Proto-Iranian*jr̥Hanyam
  5. Old Median*zaranyam
  6. Old Median*kā
  7. Old Median*zaraniyakā
  8. Middle Persian*zarnīk
  9. Classical Syriacܙܪܢܝܟܐ (zarnīḵā)
  10. Arabicالزَرْنِيخ (az-zarnīḵ)
  11. Medieval Greekἀρσενικόν (arsenikón)
  12. Latinarsenicum
  13. Middle Frencharsenic
  14. Middle Englisharsenik
  15. Englisharsenic
  16. Englisharseno-
  17. Latinbēta
  18. Englishbetaine
  19. Englisharsenobetaine

From arseno- + betaine.

Full word history & related roots →

Translations

Finnish arseenibetaiini
  • arseenibetaiiniderivative of betaine in which arsenic replaces the nitrogen atom
French arsénobétaïne
  • arsénobétaïnederivative of betaine in which arsenic replaces the nitrogen atom
German Arsenobetain
  • Arsenobetainderivative of betaine in which arsenic replaces the nitrogen atom
Portuguese arsenobetaína
  • arsenobetaínaderivative of betaine in which arsenic replaces the nitrogen atom
Spanish arsenobetaína
  • arsenobetaínaderivative of betaine in which arsenic replaces the nitrogen atom
Cite this entry
APA

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

MLA

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

Chicago

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

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