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neptunium

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neptunium

Main Entry:: nep·tu·ni·um
Pronunciation:: \nep-ˈtü-nē-əm, -ˈtyü-\
Function:: noun
Etymology:: New Latin, from International Scientific Vocabulary Neptune
Date:: 1941

: a radioactive metallic element that is chemically similar to uranium and is obtained in nuclear reactors especially as a by-product in the production of plutonium — see element table

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