Binomial nomenclature

Science

Definition

Binomial nomenclature is the formal system developed by Carl Linnaeus for naming species using two Latin words: the genus name (capitalized) and the species epithet (lowercase), both italicized. This system provides a universal, unambiguous way to identify every species.

Examples

  • Humans are Homo sapiens (genus Homo, species sapiens)
  • The domestic dog is Canis lupus familiaris
  • The common fruit fly used in genetics research is Drosophila melanogaster
Key Fact

Format: Genus species (italicized); genus is capitalized, species is lowercase.

Related Terms

Domains and kingdoms Phylogenetic trees Biodiversity Characteristics of life

Study This Concept

Practice binomial nomenclature with free review games in these units:

Biology Unit 6: Classification and Taxonomy