Meaning of “alpha particle” in the English Dictionary


"alpha particle" in American English

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alpha particlenoun [ C ]

/ˈæl·fə ˌpɑr·t̬ɪ·kəl /

physics a very small unit of matter with a positive electrical charge that is sent out by some radioactive substances

(Definition of “alpha particle” from the Cambridge Academic Content Dictionary © Cambridge University Press)