成骨不全症 Save Sign in to save words chénggǔbùquánzhèng ㄔㄥˊ ㄍㄨˇ ㄅㄨˋ ㄑㄩㄢˊ ㄓㄥˋ osteogenesis imperfecta (OI) brittle bone disease Character by character 成(chéng)surname Cheng 骨(gǔ)bone 不(bù)no 全(quán)surname Quan 症(zhèng)disease A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0