화학 반응에서 자신은 변하지 않으면서 반응 속도를 조절하는 물질
A substance that modifies the speed of a chemical reaction without undergoing permanent change itself.
예문:
"Platinum is often used as a catalyst in car exhaust systems to reduce pollution."
"The enzyme acts as a biological catalyst to speed up digestion."
중요한 변화나 사건이 일어나도록 유도하는 결정적인 원인이나 사람
A person or event that triggers a major change or action.
예문:
"The sudden price hike served as a catalyst for the nationwide protests."
"Her innovative ideas were the catalyst for the company's recent success."