Noun

1. A polynomial with two terms.
2. A quantity expressed as the sum or difference of two terms.
3. A scientific name at the rank of species, with two terms: a generic name and a specific name.
   • Usage note: Some people deprecate use of binomial and advocate use only of binominal in this context.
   • See species name for typesetting usage and example.

See also

• binominal
• monomial
• trinomial
• quadrinomial