neptunium
pronunciation
How to pronounce neptunium in British English: UK [nepˈtju:niəm]
How to pronounce neptunium in American English: US [nɛpˈtuniəm, -ˈtju-]
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- Noun:
- a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium