orthodontia /,ɔ:θәu'dɔnʃiә/ 📖 中文释义 n. 正牙学, 畸齿校整术[医] 正牙学 📘 English Definition(英文释义) n the branch of dentistry dealing with the prevention or correction of irregularities of the teeth ← orthodont O 字母词表 orthodontic →