柯林斯詞典pediment /?p?d?m?nt/ (pediments) 1. N-COUNT A pediment is a large triangular structure built over a door or window as a decoration. (門窗上的)山形牆飾 返回 pediment劍橋詞典a triangular part at the top of the front of a building that supports the roof and is often decorated （建築門廊頂上的）三角牆楣飾 返回 pediment