回鹘 Traditional form: 回鶻 Pinyin (reading): Huíhú Definitions: Huihu, ancient name of an ethnic group who were the ancestors of the Uyghurs 維吾爾族/维吾尔族 ( Wéiwuérzu) and the Yugurs 裕固族 ( Yuguzù) Characters: 回 - to return, to turn around; a time 鹘 - a kind of pigeon; treron permagna Traditional characters: 回 - to return, to turn around; a time 鶻 - a kind of pigeon; treron permagna