What does positronium mean?

Definitions for positronium
ˌpɒz ɪˈtroʊ ni əmpositro·n·i·um

Here are all the possible meanings and translations of the word positronium.

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  1. positroniumnoun

    An exotic atom consisting of a positron and an electron, but having no nucleus

  2. positroniumnoun

    An onium consisting of a positron (anti-electron) and an electron, as a particleanti-particle bound pair.


  1. Positronium

    Positronium is a system consisting of an electron and its anti-particle, a positron, bound together into an "exotic atom". The system is unstable: the two particles annihilate each other to produce two gamma ray photons after an average lifetime of 125 picoseconds or three gamma ray photons after 142 nanoseconds in vacuum, depending on the relative spin states of the positron and electron. The orbit of the two particles and the set of energy levels is similar to that of the hydrogen atom. However, because of the reduced mass, the frequencies associated with the spectral lines are less than half of those of the corresponding hydrogen lines.

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  1. Chaldean Numerology

    The numerical value of positronium in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of positronium in Pythagorean Numerology is: 7

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  1. positronium

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    come up with (an idea, plan, explanation, theory, or principle) after a mental effort
    • A. lucubrate
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