Search the dictionary A Chinese word or character, or English Search 3 entries. dàqín 大秦 Han Dynasty term for the Roman Empire 羅馬帝國|罗马帝国[Luo2 ma3 Di4 guo2] dāqín 哒嗪 pyrazine C4H4N2 dāqín 噠嗪 pyrazine C4H4N2