"0"^^ . . "108627023"@en-us . "09199904-n"^^ . . . . . "a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy"@en-us . "antiparticle"^^ . . "a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy"@en-us . "109199904"^^ . . . . . . "0"^^ . . "antiparticle"@en-us .