baryonium

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noun

A particle-like resonance preferentially coupled to baryon-antibaryon channels. It is described either as a baryon-antibaryon compound or composed of a diquark and an antidiquark.

OriginEnglish baryon ← Ancient Greek ἰόν (ión) ← Proto-Hellenic *éimi →
Scrabble 16
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Meanings

nounbaryonium (plural baryoniums or baryonia)

plural baryoniums · plural baryonia

  1. particlenatural sciencesA particle-like resonance preferentially coupled to baryon-antibaryon channels. It is described either as a baryon-antibaryon compound or composed of a diquark and an antidiquark.

Origin

  1. Proto-Indo-European*gʷreh₂-
  2. Proto-Indo-European*gʷréh₂us
  3. Proto-Hellenic*gʷarus
  4. Ancient Greekβαρύς (barús)
  5. Ancient Greekἤλεκτρον (ḗlektron)
  6. Latinēlectrum
  7. New Latinēlectricus
  8. Englishelectric
  9. Proto-Indo-European*h₁ey-
  10. Proto-Indo-European*h₁éyti
  11. Proto-Hellenic*éimi
  12. Ancient Greekἰόν (ión)
  13. Englishion
  14. Englishelectronbf.
  15. Englishbaryon
  16. Englishbaryonium

From baryon + -ium.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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