"Tropism" 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 directional growth of an organism in response to an external stimulus such as light, touch, or gravity. Growth towards the stimulus is a positive tropism; growth away from the stimulus is a negative tropism. (From Concise Dictionary of Biology, 1990)
Below are MeSH descriptors whose meaning is more general than "Tropism".
Below are MeSH descriptors whose meaning is more specific than "Tropism".
This graph shows the total number of publications written about "Tropism" by people in this website by year, and whether "Tropism" was a major or minor topic of these publications.
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