Health / Medical Topics |
Class
Definition 1
A grouping of things based on shared common attributes. (NCI Thesaurus)
Definition 2
A collection of taxonomic subdivisions directly under Phylum. It is a major group of organisms, e.g. Mammalia, Reptilia, Gastropoda, Insecta, etc that contains a large number of different sublineages, but have shared characteristics in common (e.g. warm-blooded, fur, six legs etc). (NCI Thesaurus)
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