It is the system of nomenclature in which each species of plants or animals receives a name of two terms of which the first illustrates the genus to which it belongs, and the second shows the species of the organism.
The binomial system is also known as binomial nomenclature.
This system of binomial nomenclature was first given by Carl Linnaeus.
For example, the scientific name of humans is Homo sapiens, in this Homo represents the genus, while sapiens represents a specific species.
In the binomial system, the genus name is written in capital letters, and the species name is written in small letters.
Both names should be written in italic form or should be underlined.
The ICBN or International Code of Botanical Nomenclature deals with the biological nomenclature for plants.
The ICZN or International Code of Zoological Nomenclature deals with the binomial nomenclature of animals.