. "0"^^ . . . . "(physics) a particle that is less complex than an atom; regarded as constituents of all matter"@en-us . "108693832"@en-us . . "09272085-n"^^ . . . "elementary particle"^^ . . "109272085"^^ . . . "elementary particle"@en-us . "0"^^ . . . "fundamental particle"@en-us .