Meaning of ELECTRON in English
[ ɪ'lɛktrɒn ]
■ noun Physics a stable negatively charged subatomic particle with a mass 1,836 times less than that of the proton, found in all atoms and acting as the primary carrier of electricity in solids.
C19: from electric + -on .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004