pentaarsenic

P3E1N1T1A1A1R1S1E1N1I1C3

noun

Five arsenic atoms or ions in a compound (As₅).

OriginEnglish arsenic ← Middle English arsenik ← Middle French arsenic →
Scrabble 16
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Meanings

nounpentaarsenic (uncountable)
  1. in compoundsuncountablechemistryFive arsenic atoms or ions in a compound (As₅).

Origin

  1. Proto-Indo-European*pénkʷe
  2. Proto-Hellenic*pénkʷe
  3. Ancient Greekπέντε (pénte)
  4. Ancient Greekπεντᾰ- (pentă-)
  5. Englishpenta-
  6. Proto-Indo-European*ǵʰelh₃-
  7. Proto-Indo-European*ǵʰl̥h₃enyom
  8. Proto-Indo-Iranian*ȷ́ʰr̥Hanyam
  9. Proto-Iranian*jr̥Hanyam
  10. Old Median*zaranyam
  11. Old Median*kā
  12. Old Median*zaraniyakā
  13. Middle Persian*zarnīk
  14. Classical Syriacܙܪܢܝܟܐ (zarnīḵā)
  15. Arabicالزَرْنِيخ (az-zarnīḵ)
  16. Medieval Greekἀρσενικόν (arsenikón)
  17. Latinarsenicum
  18. Middle Frencharsenic
  19. Middle Englisharsenik
  20. Englisharsenic
  21. Englishpentaarsenic

From penta- + arsenic.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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