柯林斯詞典pyramidal /p??r?m?d?l/ 1. ADJ Something that is pyramidal is shaped like a pyramid. 金字塔形的[正式] ...a black pyramidal tent. ...一個(gè)黑色金字塔形帳篷。 返回 pyramidal劍橋詞典mathematics, medical shaped like a pyramid 金子塔狀的 medical relating to the path of groups of nerve fibres in the brain called the pyramidal tract （神經(jīng)）錐體束的 返回 pyramidal