A radioactive transuranic metallic element; found in trace amounts in uranium ores; a by product of the production of plutonium
A new metallic element, of doubtful genuineness and uncertain indentification, said to exist in certain minerals, as columbite.
Noun
a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
n.
A new metallic element, of doubtful genuineness and
uncertain indentification, said to exist in certain minerals, as
columbite.
Neptunium
A new metallic element, of doubtful genuineness and uncertain indentification, said to exist in certain minerals, as columbite.
Usage Examples
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