Defenition of the word neptunium

• Defenition of the word neptunium

  • A chemical element with symbol Np and atomic number 93, a silvery radioactive metallic actinide.
  • a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium

Synonyms for the word neptunium

• • atomic number 93
  • Np

Hypernyms for the word neptunium

• • actinide
  • metal
  • metallic element

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