定西 Traditional form: 定西 Pinyin (reading): Dìngxī Definitions: Dingxi prefecture-level city in Gansu Characters: 定 - to decide, to fix, to settle; to order; definite, fixed, sure 西 - west, western, westward Traditional characters: 定 - to decide, to fix, to settle; to order; definite, fixed, sure 西 - west, western, westward