trianion

T1R1I1A1N1I1O1N1

noun

An anion that has three negative charges

OriginEnglish anion ← Ancient Greek ἀνῐόν (anĭón) ← Proto-Hellenic *éimi →
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Meanings

nountrianion (plural trianions)

plural trianions

  1. chemistryAn anion that has three negative charges

    In fact, very little of the phosphate trianion,P0₄⁻³, is produced in the simple ionization process.

    1974, John H. Block, Inorganic medicinal and pharmaceutical chemistry, Lea & Febiger, page 127

Origin

  1. Proto-Indo-European*tréyes
  2. Proto-Indo-European*tri-
  3. Proto-Italic*tri-
  4. Latintri-
  5. Englishtri-
  6. Proto-Indo-European*h₂en-
  7. Proto-Hellenic*aná
  8. Ancient Greekᾰ̓νᾰ́ (ănắ)
  9. Ancient Greekᾰ̓νᾰ- (ănă-)
  10. Proto-Indo-European*h₁ey-
  11. Proto-Indo-European*h₁éyti
  12. Proto-Hellenic*éimi
  13. Ancient Greekῐ̓όν (ĭón)
  14. Ancient Greekἀνῐόν (anĭón)
  15. Englishanion
  16. Englishtrianion

From tri- + anion.

Full word history & related roots →

Rhymes & wordplay

Anagrams

Tironian
Cite this entry
APA

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

MLA

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

Chicago

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

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