辟雍砚 Traditional form: 辟雍硯 Pinyin (reading): pìyōngyàn Definitions: ink slab or ink stone of celadon or white porcelain with unglazed surface Characters: 辟 - law, rule; to open up, to develop 雍 - harmony, union; harmonious 砚 - inkstone Traditional characters: 辟 - law, rule; to open up, to develop 雍 - harmony, union; harmonious 硯 - inkstone