NeptuniumWordNet Explorer
Explore synonyms, antonyms, hypernyms, hyponyms, and semantic relationships for “neptunium” powered by Princeton WordNet.
noun
a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
noun
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.