Meaning of “alpha particle” in the English Dictionary

british dictionary

(Definition of “alpha particle” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"alpha particle" in American English

See all translations

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)