catalyst

🇺🇸 /ˈkætəlɪst/ 🇬🇧 /ˈkætəlɪst/
Frequency
Difficulty
Tags TOP10000
noun
R

A substance that helps a chemical reaction to happen more quickly without being used up in the process.

The new catalyst was used to speed up the reaction in the lab.

R

A person or thing that causes a significant change or action.

The new policy acted as a catalyst for the company's growth.

translation

n. A substance that helps a chemical reaction to happen more quickly without being used up in the process.; A person or thing that causes a significant change or action.

Word Forms

Plural catalysts