. "0"^^ . "meson"^^ . . "09352282-n"^^ . . . "108767104"@en-us . . . "109352282"^^ . "mesotron"@en-us . . "106677206"@en-us . . "0"^^ . "an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0"@en-us . . . "meson"@en-us . . . . . . "an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0"@en-us .