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We found 3 dictionaries that define the word proton decay:

General (1 matching dictionary)
  1. Proton decay: Wikipedia, the Free Encyclopedia

Science (2 matching dictionaries)
  1. Proton Decay, Proton decay: Extragalactic Astronomy

Definitions from Wikipedia (Proton decay)

noun:  In particle physics, proton decay is a hypothetical form of particle decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron.


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