"Nitrogen" 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.
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
Below are MeSH descriptors whose meaning is more general than "Nitrogen".
Below are MeSH descriptors whose meaning is more specific than "Nitrogen".
This graph shows the total number of publications written about "Nitrogen" by people in this website by year, and whether "Nitrogen" was a major or minor topic of these publications.
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