Nantoka/二氧化硅èr yǎng huà guī二氧化硅 (èr yǎng huà guī) is a Chinese word meaning “silicon dioxide (SiO2)”.Meanings1silicon dioxide (SiO2)Characters in 二氧化硅二èr · two氧yǎng · oxygen (chemistry)化huà · to make into硅guī · silicon (chemistry)Related words第二second二two变化(intransitive) to change; to vary化to make into化variant of 花[hua1]文化culture二十twenty; 20化学chemistry化妆to put on makeup十二twelve氧气oxygen周二TuesdayStudy Chinese with flashcards →