"Half-Life" 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.
The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.
- Half Life
Below are MeSH descriptors whose meaning is more general than "Half-Life".
Below are MeSH descriptors whose meaning is more specific than "Half-Life".
This graph shows the total number of publications written about "Half-Life" by people in this website by year, and whether "Half-Life" was a major or minor topic of these publications.
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