石棉瓦 shímiánwǎ asbestos roofing sheet Origin Definitions Defs Strokes Stroke Words Sentences Sents 石棉 shímián asbestos A fibrous mineral used for fireproofing and insulation due to its resistance to heat, acids, and electricity.瓦 wǎ nounverb tile roof tile; building material made of fired clay, cement, or other materials used for covering roofs