Words / C1

KAT-uh-list/ˈkætəlɪst/

A catalyst is something that speeds a change without being the whole cause — originally chemistry, now journalism and essays. Trigger is close but often a single spark; stimulus is more technical. A catalyst for reform, a catalyst for her writing. In speech, what got it moving or the thing that sped it up is clearer. Do not call every cause a catalyst.

Meaning

Something that causes a change to happen more quickly.

Examples

• “The prize was a catalyst for her writing.”
• “The leak was a catalyst for the inquiry, not the only reason.”
• “A small grant became the catalyst for a full redesign of the course.”

Good to know

a catalyst for + change. Speeds a process. Everyday: trigger / what got it moving. Originally chemistry.

Near in meaning

trigger

New