pentagonalWiktionary 原文/pɛnˈtæɡənəl/构词拆解pentagonpentagon词干al-al后缀-alOf or pertaining to. Adjectival suffix appended to various words, often nouns, to produce an adjective form. Often added to words of Latin origin, but used with other words also. · Forming nouns, especially of verbal action.词源说明From pentagon + -al.释义形容词adjective1Of, relating to, or shaped like a pentagon.名词noun1Something having the shape of a pentagon.同族词派生词 5pentagonally·subpentagonal·pentagonal hexecontahedron·