渭源 Traditional form: 渭源 Pinyin (reading): Wèiyuán Definitions: see 渭源縣/渭源县 ( Wèiyuán Xiàn) Characters: 渭 - a river in Shanxi province 源 - spring; source, root, head; surname Traditional characters: 渭 - a river in Shanxi province 源 - spring; source, root, head; surname