"0"^^ . . "a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy"@en-us . . . "112718665"@en-us . . . . "nuclear fission"@en-us . . . . "a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy"@en-us . "0"^^ . "fission"^^ . . . . . . "109723985"@en-us . . "fission"@en-us . "113481224"^^ . . . "13481224-n"^^ . . .