catalyst

/'kætəlɪst/

n 催化剂；造成变化的人或事

例句：I very much hope that this case will prove to be a catalyst for change.（我非常希望这件事终将成为促成变化的催化剂。）

派生：catalytic；catalytically；catalysis

短语：phase transfer catalyst；hydrogenation catalyst；catalyst bed

同近：fuel；activator