positronium
(noun)
noun
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.
(noun)
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.