polynomial

n. algebraic expression that is the sum of two or more constants multiplied by variables with exponents (Mathematics)

In mathematics, a polynomial is an expression that is constructed from one or more variables and constants, using only the operations of addition, subtraction, multiplication, and constant positive whole number exponents. is a polynomial. Note in particular that division by an expression containing a variable is not generally allowed in polynomials.
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adj. polynomial

adj. (Mathematics) polynomial

(n.)
An expression composed of two or more terms, connected by the signs plus or minus; as, a2 - 2ab + b2.
  

(a.)
Containing many names or terms; multinominal; as, the polynomial theorem.
  

(a.)
Consisting of two or more words; having names consisting of two or more words; as, a polynomial name; polynomial nomenclature.
  

1. <mathematics> An arithmetic expression composed by summing multiples of powers of some variable.
P(x) = sum a_i x^i for i = 0 .. N
The multipliers, a_i, are known as "coefficients" and N, the highest power of x with a non-zero coefficient, is known as the "degree" of the polynomial. If N=0 then P(x) is constant, if N=1, P(x) is linear in x. N=2 gives a "quadratic" and N=3, a "cubic".
2.  polynomial-time.