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Neptunium
//nɛpˈtjuːniəm// noun
Definitions
Noun
- 1 The transuranic chemical element with atomic number 93 and symbol Np. uncountable
- 2 a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium wordnet
Etymology
From Neptune + -ium, after the planet. The previous element is uranium, named after the previous planet: Uranus.
See also for "neptunium"
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Unscramble this word: neptunium