Definition of “electron” - English Dictionary

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“electron” in British English

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

“electron” in American English

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electronnoun [ C ]

us /ɪˈlek·trɑn/

physics, chemistry the part of an atom with a negative electrical charge, which moves around the atom's nucleus (= central part)

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