Meaning: (biology) taxonomic group containing one or more species. Classified under: Nouns denoting groupings of people or objects. Hypernyms (genus is a kind of...): taxon; taxonomic category; taxonomic group (animal or plant group having natural relations).Meronyms (members of genus): subgenus ((biology) taxonomic group between a genus and a species). species ((biology) taxonomic group whose members can interbreed).ype genus ((biology) genus from which the name of a family or subfamily is formed; it is not necessarily the most representative genus but often the largest or best known or earliest described).