Definition of binomial
1 : a mathematical expression consisting of two terms connected by a plus sign or minus sign
2 : a biological species name consisting of two terms
binomiallyplay \-mē-ə-lē\ adverb
Examples of binomial in a Sentence
the binomial a + b
Recent Examples of binomial from the Web
Before binomials, names of plants in books were lists or strings of words that formed a kind of nuanced description.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'binomial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
BINOMIAL Defined for English Language Learners
Definition of binomial for English Language Learners
mathematics : an expression consisting of two terms connected by a plus sign or minus sign
Medical Definition of binomial
: a biological species name consisting of two terms
Learn More about binomial
Britannica.com: Encyclopedia article about binomial
Seen and Heard
What made you want to look up binomial? Please tell us where you read or heard it (including the quote, if possible).