binomial nomenclature

noun Zoology, Botany.
a system of nomenclature in which each species is given a unique name that consists of a generic and a specific term.

Origin:
1875–80

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World English Dictionary
binomial nomenclature or binominal nomenclature
 
n
a system for naming plants and animals by means of two Latin names: the first indicating the genus and the second the species to which the organism belongs, as in Panthera leo (the lion)
 
binominal nomenclature or binominal nomenclature
 
n

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American Heritage
Medical Dictionary

binomial nomenclature n.
The scientific naming of species whereby each species receives a Latin or Latinized name of two parts, the first indicating the genus and the second being the specific name.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
binomial nomenclature  
The scientific system of naming an organism using two terms, the first being the genus and the second the species. The terms are usually Greek or Latin. For example, the scientific name of the narrow-leaf firethorn is Pyracantha angustifolia, where the genus is Greek for "fire thorn" and the species is Latin for "having narrow leaves."
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Capitalizing genus is another convention of binomial nomenclature.
His naming system, known as binomial nomenclature, became the standard scientific lingo and is still used today.
Binomial nomenclature helps us to understand the relationship between animals.
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