polynomial

Etymology

poly- + -nomial, from νομός (nomós, “portion, part”), by analogy with binomial.

noun

1. (algebra, strict sense) An expression consisting of a sum of a finite number of terms, each term being the product of a constant coefficient and one or more variables raised to a non-negative integer power, such as a_nxⁿ+a_n-1xⁿ⁻¹+...+a_0x⁰.
2. (taxonomy) A taxonomic designation (such as of a subspecies) consisting of more than two terms.

adj

1. (algebra) Able to be described or limited by a polynomial.
2. (taxonomy) of a polynomial name or entity