氧化汞 Traditional form: 氧化汞 Pinyin (reading): yǎnghuàgǒng Definitions: mercuric oxide (HgO) Characters: 氧 - oxygen 化 - to change, to convert, to reform; -ize 汞 - mercury (element) Traditional characters: 氧 - oxygen 化 - to change, to convert, to reform; -ize 汞 - mercury (element)