Definition of “subatomic particle” - English Dictionary

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“subatomic particle” in British English

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subatomic particlenoun [ C ]

uk /sʌb.əˌtɒm.ɪk ˈpɑː.tɪ.kəl/ us /sʌb.əˌtɑː.mɪk ˈpɑːr.t̬ə.kəl/ specialized

an extremely small piece of matter that is smaller than an atom or found inside an atom, such as a proton, neutron, or electron

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

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