石油醚 Traditional form: 石油醚 Pinyin (reading): shíyóumí Definitions: petroleum ether Characters: 石 - stone, rock, mineral 油 - oil, fat, grease, lard; oil paints 醚 - ether Traditional characters: 石 - stone, rock, mineral 油 - oil, fat, grease, lard; oil paints 醚 - ether