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hadron JUST WRITTEN FOR YOU

/ˈhæd.ɹɑn/ · had·ron
noun
  1. A composite particle that comprises two or more quarks held together by the strong force and can interact with other particles via that force; includes mesons and baryons. Protons and neutrons are examples of hadrons that make up the nuclei of atoms.
Did you know? The word 'hadron' was introduced by Lev Okun in 1961, borrowing the Greek root for 'thick' to emphasize that these particles are heavier than leptons such as electrons.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 15, 2026