Meaning of PROTON in English

ˈprōˌtän noun

( -s )

Etymology: Greek prōton, neuter of prōtos first — more at prot-

1. : anlage

2. : an elementary particle that is identical with the nucleus of the hydrogen atom, that along with neutrons is a constituent of all other atomic nuclei, that carries a positive charge numerically equal to the charge of an electron, and that has a mass of 1.672 × 10 -24 gram

• pro·ton·ic prōˈtänik adjective

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.