Si Collection, Upper Volume Radical: Water (shuǐ) 汞 Kangxi Dictionary strokes: 7 Page 606, Entry 03 Pronounced hǒng. Originally written as the character meaning dissolved cinnabar (hòng). It is the substance transformed from cinnabar, known as mercury. Also, according to the Collected Rhymes (Jiyun), pronounced hòng. The meaning is the same.