Bionomial nomenclature is the term that describes Linnaeus system for naming organisms using

Bionomial nomenclature is the term that describes Linnaeus system for naming organisms using two names. First name is used for genus and second name is used for specie.

Explanation:

Species are the organism that can interbreed with one another and produce fertile offspring while genus comprise of many species which are same in many characteristics. For example, Rana tigrina is the scientific name of frog. In this name, rana is genus and tigrina is specie.