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Definition of Photon
1. Noun. A quantum of electromagnetic radiation; an elementary particle that is its own antiparticle.
Generic synonyms: Gauge Boson
Group relationships: Electromagnetic Radiation, Electromagnetic Wave, Nonparticulate Radiation
Group relationships: Electromagnetic Radiation, Electromagnetic Wave, Nonparticulate Radiation
Definition of Photon
1. an elementary particle [n -S] : PHOTONIC [adj]
Medical Definition of Photon
1.