Search the dictionary A Chinese word or character, or English Draw a character Search 4 entries. nèijìng 内径 internal diameter nèijìng 內徑 internal diameter huángdìnèijīng 黄帝内经 The Yellow Emperor's Internal Canon, medical text c. 300 BC huángdìnèijīng 黃帝內經 The Yellow Emperor's Internal Canon, medical text c. 300 BC