plutonium

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Pronunciation

• enPR: plo͞otō'nēəm, IPA: /pluːˈtoʊniəm/

Noun

plutonium (uncountable)

1. The transuranic chemical element with atomic number 94 and symbol Pu: a silvery-gray radioactive actinide metal that tarnishes when exposed to air.
2. (countable, historical) Alternative form of ploutonion

Related terms

• Pluto
• pluton
• Plutonian
• plutonic
• plutonism

Translations

• French: plutonium
• German: Plutonium
• Italian: plutonio
• Portuguese: plutónio
• Russian: плуто́ний
• Spanish: plutonio

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