Wu Collection, Upper Volume Radical: Jade (yù) Xuan Kangxi strokes: 14 Page 736, Entry 20 Pronounced xuan. According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it refers to a jade disc six inches in diameter. In the History of the Former Han (Qian Hanshu), Record of Suburban Sacrifices (Jiaosi Zhi): Officers presented the xuan jade. Meng Kang's commentary: A jade disc six inches in diameter is called a xuan. Also, according to the Collected Rhymes (Jiyun), it is alternatively written as xuan. According to the Approaching Elegance (Erya), Explanation of Implements (Shiqi): A jade disc six inches in diameter is called a xuan. Commentary: This refers to the xuan jade mentioned in the History of the Han (Hanshu).