English dictionary
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English noun: neptunium | |||
| 1. | neptunium (substance) a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium | ||
| Synonyms | atomic number 93, Np | ||
| Broader (hypernym) | metal, metallic element | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk