plutonium
BrE /ˈpluːtəniəm/ AmE /ˈpluːtoʊniəm/
noun en → es
a radioactive chemical element with the symbol Pu and atomic number 94, used in nuclear weapons and as a fuel for some types of nuclear reactors.
plutonio
Collocations plutonium bomb · plutonium reactor
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The plutonium was used to make the nuclear weapon.
El plutonio se utilizó para hacer la arma nuclear.