门源 Traditional form: 門源 Pinyin (reading): Ményuán Definitions: Menyuan Hui Autonomous County in Haibei Tibetan Autonomous Prefecture 海北藏族自治州 ( Hǎiběi Zàngzú Zìzhìzhōu), Qinghai Characters: 门 - gate, door, entrance, opening 源 - spring; source, root, head; surname Traditional characters: 門 - gate, door, entrance, opening 源 - spring; source, root, head; surname