In biology, binomial nomenclature is how species are named. As the word "binomial" suggests, the name of a species is made by using two words: the genus name and the species description. Binomial nomenclature means "two named description".
The person who created this system for use was Swedish botanist and physician Carolus Linnaeus (1707–1778) who tried to find names for all things in the natural world and gave every species (mineral, vegetable or animal) a two-part name. This kind of naming had been used before Linnaeus, but before Linnaeus, almost nobody used binomial nomenclature. After Linnaeus, about everybody did.
Value of binomial nomenclature [change]
The value of the binomial nomenclature comes from its economy, its widespread use, and the uniqueness and stability of names from the system. The system replaced the use of popular local names, which were useless for readers who lived elsewhere and could not tell what species those names referred to.
Linnaeus's taxonomy system has two main features that contribute to its ease of use in naming and grouping organisms. The first is the use of binomial nomenclature and the second is the ordering of species into broad categories.
Binomial nomenclature involves organizing an organism's scientific name into a combination of two terms. These terms are the genus name and the species. Both of these terms are italicized and the genus name is also capitalized.
Where names come from [change]
The names may come from any source whatsoever. Often they are Latin words, but they may also come from Ancient Greek, from a place, from a person, a name from a local language, etc. In fact, the people who come up with these names sometime use specific descriptors from a variety of sources, including jokes and puns.
The names are always treated grammatically as if they were a Latin sentence. This is why the name of a species is sometimes called its "Latin name," but scientists like calling these names scientific names.