proton

English

/ˈpɹəʊ.tɒn/, /ˈpɹoʊ.tɑn/

noun
Definitions
  • (particle) A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark.

Etymology

Derived from Ancient Greek πρῶτον.

Origin

Ancient Greek

πρῶτον

Gloss

Timeline

Distribution of cognates by language

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Cognates and derived terms