链式反应 liànshìfǎnyìng chain reaction Definitions Defs Origin Strokes Stroke Words Sentences Sents 链 鏈 liàn noun chain chain; cable; series of metal rings connected together式 shì affixnoun type (bound form) type; form; pattern; style; standard反应 反應 fǎnyìng nounverb chemical reaction a process in which substances undergo chemical or physical change