What is the meaning of Plutonium?

The transuranic chemical element with atomic number 94 and symbol Pu: a silvery-gray fissile radioactive actinide metal that tarnishes when exposed to air.

Alternative form of ploutonion

plutonium

plutonium

plutonium

plutonium

plutonium

plutonium

plutonium

plutonium (chemical element)

plutonium (chemical element, symbol Pu)

plutonium (as above)

plutonium

Source: wiktionary.org