Text: baryon - any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1 heavy particle fermion - any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle hadron - any elementary particle that interacts strongly with other particles hyperon - any baryon that is not a nucleon; unstable particle with mass greater than a neutron nucleon - a constituent (proton or neutron) of an atomic nucleus

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