# binomial

[bahy-noh-mee-uh l] /baɪˈnoʊ mi əl/
noun
1.
Algebra. an expression that is a sum or difference of two terms, as 3 x + 2 y and x 2 − 4 x.
2.
Zoology, Botany. a taxonomic name consisting of a generic and a specific term, used to designate species.
3.
Algebra. consisting of or pertaining to two terms or a binomial.
4.
Zoology, Botany. consisting of or characterized by binomials.
Origin of binomial
1550-1560
1550-60; < Late Latin binōmi(us) having two names (compare Latin binōminis) + -al1. See bi-1, nominal
Related forms
binomialism, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for binomial
Historical Examples
• The binomial theorem operates irrespective of the values substituted for its symbols.

• The dot is used to indicate that the root of the binomial (not of 136 alone) is called for.

Florian Cajori
• In the tenth edition, in 1758, the binomial system of nomenclature was first consistently applied to all animals.

David Starr Jordan
• You might as well try to rush the Proof of the binomial Theorem.

Walter Besant
• At the age of twenty-one he wrote a treatise upon the binomial Theorem, which has had a European vogue.

Sir Arthur Conan Doyle
• (a) Write the middle term of the expansion of by the binomial theorem.

Romeyn Henry Rivenburg
• A binomial in algebra is a quantity consisting of two terms.

Elmer W. Cavins
• Very like the binomial Theorem as one thought over that comparison.

H. G. Wells
• The hour set was 5:00 A. M., while the teachers would be dreaming about the binomial formula, blue light, and turnips.

R. Pitcher Woodward
• Oughtred lays great stress upon expansions of powers of a binomial.

Florian Cajori
British Dictionary definitions for binomial

## binomial

/baɪˈnəʊmɪəl/
noun
1.
a mathematical expression consisting of two terms, such as 3x + 2y
2.
a two-part taxonomic name for an animal or plant See binomial nomenclature
3.
referring to two names or terms
Derived Forms
Word Origin
C16: from Medieval Latin binōmius from bi-1 + Latin nōmenname
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for binomial
noun
Dictionary.com's 21st Century Lexicon
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Word Origin and History for binomial

1550s (n.); 1560s (adj.), from Late Latin binomius "having two personal names," a hybrid from bi- (see bi-) + nomius, from nomen (see name (n.)). Taken up 16c. in the algebraic sense "consisting of two terms."

Online Etymology Dictionary, © 2010 Douglas Harper
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binomial in Medicine

binomial bi·no·mi·al (bī-nō'mē-əl)
Consisting of two terms or names, such as the genus and species names of organisms. n.
A taxonomic name used in binomial nomenclature.

The American Heritage® Stedman's Medical Dictionary
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binomial in Science
 binomial   (bī-nō'mē-əl)    A mathematical expression that is the sum of two monomials, such as 3a + 2b.
The American Heritage® Science Dictionary