PROTON


Meaning of PROTON in English

[ 'prəʊtɒn ]

■ noun Physics a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.

Derivatives

~ic adjective

Origin

1920s: from Gk, neut. of prōtos 'first'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.