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neptunium

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noun nep·tu·ni·um \nep-ˈtü-nē-əm, -ˈtyü-\

Definition of neptunium

  1. :  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



Origin and Etymology of neptunium

New Latin, from International Scientific Vocabulary Neptune


First Known Use: 1941


NEPTUNIUM Defined for Kids

neptunium

play
noun nep·tu·ni·um \nep-ˈtü-nē-əm, -ˈtyü-\

Definition of neptunium for Students

  1. :  a radioactive chemical element similar to uranium




Medical Dictionary

neptunium

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noun nep·tu·ni·um \nep-ˈt(y)ü-nē-əm\

Medical Definition of neptunium

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



Biographical Note for neptunium

Neptune

\ˈnep-ˌt(y)ün\play , Roman mythological character. Neptune was originally the god of fresh water. Later he became identified with the Greek god Poseidon, a deity of the sea. In art Neptune is usually represented as a bearded man holding a trident and sometimes a fish. The planet Neptune was named after him and the element neptunium was named after the planet.


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