I. ˌpä-lə-ˈnō-mē-əl noun
Etymology: poly- + -nomial (as in binomial )
Date: 1674
: a mathematical expression of one or more algebraic terms each of which consists of a constant multiplied by one or more variables raised to a nonnegative integral power (as a + bx + cx 2 )
II. adjective
Date: circa 1704
: relating to, composed of, or expressed as one or more polynomials
polynomial functions
polynomial equations