binomial

/baɪˈnoʊmiəl/

Other forms: binomials

Anything binomial consists of two terms (like x + 5) or has two names (like homo sapiens).

Words starting with the prefix bi are related to the number two. The first meaning is one you might encounter in algebra class: a binomial has two terms. Often binomials are in parentheses, and they always have two parts: (X-Y) is a binomial because of the two variables: X and Y. The other type of binomial can be found in biology class: a two-part name that belongs to the system of distinguishing individual biological species, like canis familiaris: a dog.

Definitions of binomial

1. noun

   (mathematics) a quantity expressed as a sum or difference of two terms; a polynomial with two terms
   type of:

   quantity

   the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable
2. adjective

   of or relating to or consisting of two terms
   “binomial expression”
3. adjective

   having or characterized by two names, especially those of genus and species in taxonomies
   “binomial nomenclature of bacteria”

   synonyms: binominal

   onymous

   bearing a name