In Linnaean taxonomy, genus is the rank between family and species. Genus may also refer to: Genus, a taxonomic rank used for the purpose of cloud classification Genus: Journal of Population Sciences, a journal of population genetics founded by Nora Federici Genus (mathematics), a classifying property of a mathematical object Genus of a multiplicative sequence Geometric genus In graph embedding, the genus of the graph is the genus of the surface in which it can be embedded In the theory of numerical semigroups, the genus of a numerical semigroup is the cardinality of the set of gaps in the numerical semigroup Genus of a quadratic form Grammatical gender Genus (music), a concept in ancient Greek music theory Genus (philosophy) Genus (linguistics) Genus (comics), a furry erotic comic book In Alienators: Evolution Continues, the Genus are monstrous alien organisms that have a high speed evolution Genus plc, a British biotechnology company Sport Club Genus de Porto Velho, a Brazilian football (soccer) club Genera (operating system) People Gennadii Genus (born 1990), Ukrainian track cyclist James Genus (born 1966), American jazz bassist Sampson Genus (born 1988), American football player See also Gens (disambiguation) Gender (disambiguation) Genius