IapetianWiktionary 原文/aɪəˈpiːʃən/构词拆解IapetIapetus词干ian-ian后缀-ian(as an adjective) From, related to, or like. · (as a noun) One from, belonging to, relating to, or like.词源说明Iapetus + -ian释义形容词adjective1(mythology) Of or relating to the Titan Iapetus in Greek mythology.2(astronomy) Of or relating to the Saturnian moon Iapetus, named for the Titan god.