油烟 Traditional form: 油煙 Pinyin (reading): yóuyān Definitions: soot lampblack Characters: 油 - oil, fat, grease, lard; oil paints 烟 - smoke, soot; opium; tobacco, cigarettes Traditional characters: 油 - oil, fat, grease, lard; oil paints 煙 - smoke, soot; opium; tobacco, cigarettes