"a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle"@en-us . "a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle"@en-us . . "09391223-n"^^ . . "0.491782"^^ . "0.0"^^ . "0.0"^^ . "108802416"@en-us . "0.0"^^ . . . . . "0"^^ . . "0.0"^^ . . . "0.275112"^^ . "0.0"^^ . "photon"^^ . "photon"@en-us . . . "0.233106"^^ . "109391223"^^ . . . "0"^^ . . . . . .