Meaning of CATALYST in English
transcription, транскрипция: [ kætəlɪst ]
You can describe a person or thing that causes a change or event to happen as a catalyst .
I very much hope that this case will prove to be a catalyst for change...
He said he saw the bank’s role as a catalyst to encourage foreign direct investment.
N-COUNT : oft N for n
In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly.
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006