冥王星 Traditional form: 冥王星 Pinyin (reading): Míngwángxīng Definitions: Pluto (dwarf planet) Characters: 冥 - dark, gloomy, night; deep 王 - king, ruler; royal; surname 星 - star, planet; a point of light Traditional characters: 冥 - dark, gloomy, night; deep 王 - king, ruler; royal; surname 星 - star, planet; a point of light