genus - (biology) taxonomic group containing one or more speciesform genus - an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms family - (biology) a taxonomic group containing one or more genera; "sharks belong to the fish family" subgenus - (biology) taxonomic group between a genus and a species type 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 form genus - (biology) an artificial taxonomic category for organisms of which the true relationships are obscure species - (biology) taxonomic group whose members can interbreed dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination |