"Neptunium" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Neptunium. A radioactive element of the actinide metals family. It has the atomic symbol Np, atomic number 93, and atomic weight 237.
Below are MeSH descriptors whose meaning is more general than "Neptunium".
Below are MeSH descriptors whose meaning is more specific than "Neptunium".
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