Meanings
nounpionium (plural pioniums)
plural pioniums
- chemistryan exotic atom equivalent to a hydrogen atom with the proton replaced by a pion
Synonyms: pi-mu atom
- natural sciencesan onium where the bound antiparticle-particle pair is a pion and an antipion.
Synonyms & antonyms
nounan exotic atom equivalent to a hydrogen atom with the proton replaced by a pion
Similar
pi-mu atom
Origin
Translations
Italian pionio
- pionioatom
Cite this entry
APA
pionium. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pionium
MLA
“pionium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pionium. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “pionium,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pionium.
Source: pionium on Wiktionary, CC BY-SA 4.0.