雷酸汞 léisuāngǒng mercury fulminate Origin Definitions Defs Strokes Stroke Words Sentences Sents 雷 léi noun thunder thunder; the loud noise caused by atmospheric electrical discharge酸 suān noun acid acid, a chemical compound that releases hydrogen ions in water汞 gǒng noun mercury mercury (element Hg); a toxic, silver-white liquid metal also called 水银 shuǐyín