quadrinomial

& s. [Pref. quadri-, and Eng. nomial (q. v.).] A. As adj .: Consisting of four terms or denominations. B. As subst.: A quantity, consisting of four terms or denominations. quãd-ri-năm-ic-al, adj. [Lat. quadrus =fourfold, and nomen a name, a term.] quadruman a