Definitions
1.AdjectiveConsisting of two names.
2.AdjectivePertaining to the noun binomen.
3.AdjectivePertaining to the nomenclature system for the rank of species in biological taxonomy."The principle of binominal nomenclature is important in the ICZN."
4.NounA scientific name, at the rank of species, with two terms: a generic name and a specific name.
5.NounA construct involving two nouns or two names.