Advanced English Word of the Day

Definitions

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catalyst
1. n. (chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.
2. n. Someone or something that encourages progress or change.
Economic development and integration are working as a catalyst for peace.
3. n. (literature) An inciting incident that sets the successive conflict into motion.
4. n. (automotive) A catalytic converter.

Example Sentences

These books are a wonderful catalyst.

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