蝶窦 Save Sign in to save words Traditional (Taiwan): 蝶竇 diédòu ㄉㄧㄝˊ ㄉㄡˋ sphenoidal sinus Character by character 蝶(dié)butterfly 窦(dòu)surname Dou A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0