catalyst
/ˈkætəlɪst/
noun
- A person or event that causes an important change to happen.
- Her speech acted as a catalyst, inspiring the team to work harder.
- The protest was a catalyst for new laws on environmental protection.
- The invention of the internet was a catalyst for global communication.
- A substance that speeds up a chemical reaction without being changed itself.
- Enzymes are natural catalysts that help digest food in your body.
- Adding a catalyst to the mixture made the reaction happen much faster.
- In the lab, platinum is often used as a catalyst to speed up reactions.