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plutonium
nounmasculinetechnicaluncommon/pluˈtɔnju/plu·tó·ni·o
Definition
1Radioactive metallic chemical element (symbol Pu, atomic number 94), used as nuclear fuel and in nuclear weapons.
Usage examples
“Plutonium-239 is a fissile isotope used in nuclear reactors.”
“Radioactive waste contains traces of plutonium and other dangerous elements.”
Common combinations
plutonium-239plutonium reactorplutonium fuelplutonium production