A plutonium is a heavy, radioactive, man-made, metallic Element (atomic number 94) used in the production of nuclear energy and the explosion of nuclear weapons; its most important isotope is fissile plutonium-239, produced by neutron irradiation of uranium-238.

See also:
"plutonium" is in the CPC Code "3362"
Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions, ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products

"plutonium" is in the HS Code "2844.20"
- - Uranium enriched in U 235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U 235, plutonium or compounds of these products

"plutonium" is in the UNSPSC Code "15131505"
Enriched plutonium