Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. huángdìbāshíyīnànjīng 黄帝八十一难经 The Yellow Emperor's Classic of Eighty-one Difficulties, medical text, c. 1st century AD huángdìbāshíyīnànjīng 黃帝八十一難經 The Yellow Emperor's Classic of Eighty-one Difficulties, medical text, c. 1st century AD