Try Our Apps
Dictionary.com

follow Dictionary.com

2017 Word of the Year

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.
adjective
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
binomially, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for binomial
Historical Examples
  • A binomial in algebra is a quantity consisting of two terms.

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

    William Oughtred Florian Cajori
  • You might as well try to rush the Proof of the binomial Theorem.

  • Review the method of finding the square root of a binomial surd.

    A Review of Algebra Romeyn Henry Rivenburg
  • (a) Write the middle term of the expansion of by the binomial theorem.

    A Review of Algebra Romeyn Henry Rivenburg
  • Very like the binomial Theorem as one thought over that comparison.

    Soul of a Bishop H. G. Wells
  • Oughtred lays great stress upon expansions of powers of a binomial.

    William Oughtred Florian Cajori
  • Thus Linnaeus became the acknowledged originator of the binomial (two-name) system of nomenclature now in use in all sciences.

    Trees Worth Knowing Julia Ellen Rogers
  • binomial, of two words, as the name of genus and species taken together, 180.

  • At nineteen such a woman is still immature; and moreover until she was twenty, Honoria had not mastered the binomial Theorem.

    Mrs. Warren's Daughter Sir Harry Johnston
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
adjective
3.
referring to two names or terms
Derived Forms
binomially, adverb
Word Origin
C16: from Medieval Latin binōmius from bi-1 + Latin nōmenname
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Contemporary definitions for binomial
noun
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
Cite This Source
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
Cite This Source
binomial in Medicine

binomial bi·no·mi·al (bī-nō'mē-əl)
adj.
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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
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
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for binomial

Difficulty index for binomial

Most English speakers likely know this word

Word Value for binomial

12
16
Scrabble Words With Friends