binomial

[ bahy-noh-mee-uh l ]
/ baɪˈnoʊ mi əl /

noun

Algebra. an expression that is a sum or difference of two terms, as 3x + 2y and x2 − 4x.
Zoology, Botany. a taxonomic name consisting of a generic and a specific term, used to designate species.

adjective

Algebra. consisting of or pertaining to two terms or a binomial.
Zoology, Botany. consisting of or characterized by binomials.

Origin of binomial

1550–60; < Late Latin binōmi(us) having two names (compare Latin binōminis) + -al1. See bi-1, nominal

OTHER WORDS FROM binomial

bi·no·mi·al·ism, nounbi·no·mi·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for binomial

British Dictionary definitions for binomial

binomial
/ (baɪˈnəʊmɪəl) /

noun

a mathematical expression consisting of two terms, such as 3 x + 2 y
a two-part taxonomic name for an animal or plantSee binomial nomenclature

adjective

referring to two names or terms

Derived forms of binomial

binomially, adverb

Word Origin for binomial

C16: from Medieval Latin binōmius from bi- 1 + Latin nōmen name
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

Medicine definitions for binomial

binomial
[ bī-nōmē-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.

Science definitions for binomial

binomial
[ bī-nōmē-əl ]

A mathematical expression that is the sum of two monomials, such as 3a + 2b.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.