Meaning of the word catalyst in English

What does catalyst mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

catalyst

US /ˈkæt̬.əl.ɪst/
UK /ˈkæt̬.əl.ɪst/
"catalyst" picture

Noun

1.

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

Example:
Enzymes act as biological catalysts in the body.
The platinum is used as a catalyst in the reaction.
2.

a person or thing that precipitates an event or change

Example:
Her speech was the catalyst for change in the community.
The new policy acted as a catalyst for economic growth.
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