Catalyst

/ˈkætəlɪst/

Meaning & Definition

noun

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

Enzymes act as catalysts in biochemical reactions.

A person or thing that precipitates an event or change.

The activist group served as a catalyst for social change in the community.

From Greek 'katalusis', meaning 'a loosening down'.

catalyst for change

A factor that brings about significant change.

catalyst in chemistry

Refers specifically to agents that speed up chemical reactions.

enzyme

A biomolecule that acts as a catalyst in living organisms.

reaction

A process in which substances interact to form new substances.

synthesis

The combination of components or elements to form a connected whole.

Someone who initiates change or action.

He's the catalyst of this project, getting everyone motivated.

An idea or person that stimulates interest or enthusiasm.

Her speech was a real catalyst for our planning.