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catalyst

/kætəlɪst/ noun · British & US
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What does catalyst mean?

noun

A substance that causes or accelerates a chemical reaction without being consumed or permanently altered in the process. A person or thing that precipitates an event or change.

Example

"The addition of a catalyst to the reaction mixture greatly increased its rate."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymologically related

Synonyms for catalyst

Antonyms of catalyst

Rhymes with catalyst