CEDICT
ceremonial robe embroidered with pythons, worn by officials or royalty in the Ming and Qing dynasties
Wiktionary
明、清时皇帝或皇亲国戚参加庆典才穿的礼服。皇子、亲王的蟒袍为九蟒,五爪,金黄色。品官自八蟒至五蟒,为四爪,除金黄色外,有古铜或白色,因人不同。
重編國語辭典