n. [ Poly- + -nomial, as in monomial, binomial: cf. F. polynôme. ] (Alg.) An expression composed of two or more terms, connected by the signs plus or minus; as, a2 - 2ab + b2. [ 1913 Webster ]
a. 1. Containing many names or terms; multinominal; as, the polynomial theorem. [ 1913 Webster ]
2. Consisting of two or more words; having names consisting of two or more words; as, a polynomial name; polynomial nomenclature. [ 1913 Webster ]