白金汉郡 báijīnhànjùn Buckinghamshire Definitions Defs Origin Strokes Stroke Words Sentences Sents 白 bái phonetic 金 jīn phonetic 汉 hàn phonetic 郡 jùn noun prefecture An administrative division in ancient China; its relative size compared to a 县 xiàn changed across dynasties, but it generally functioned as a commandery, prefecture, or canton.