齲洞 Save Sign in to save words Simplified: 龋洞 qǔdòng ㄑㄩˇ ㄉㄨㄥˋ hole due to dental caries Character by character 齲(qǔ)decayed teeth 洞(dòng)cave Other words read qǔdòng qudong with other tones 驅動 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0