English

Noun

positronium ‎(plural positroniums or positronia) (Symbol: Ps)

1. (physics, chemistry) An exotic atom consisting of a positron and an electron, but having no nucleus
2. (physics) An onium consisting of a positron (anti-electron) and an electron, as a particle–anti-particle bound pair.

Translations

Derived terms

(exotic atom):

• dipositronium
• orthopositronium
• parapositronium

See also

(exotic atom):

• muonium

(onium):

• muononium
• tauonium
• toponium
• pionium