#photon  a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
  supertype:  gauge_boson__gaugeboson  a particle that mediates the interaction of two elementary particles
  part of:  electromagnetic_radiation__electromagneticradiation__electromagnetic_wave__electromagneticwave__nonparticulate_radiation  radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

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