catalyst

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IELTSTOEFLGREB2

Definitions

n.

A substance that speeds up a chemical reaction without being consumed; a person or thing that triggers change or progress

催化剂；促进变化的人或事物

🧩 Root Breakdown

Root-derived

catalroot

+

ystone who practices, believer in

=catalyst

Common Collocations

1.chemical catalyst化学催化剂
2.catalyst for change变化的催化剂

Example Sentences

1.
The new technology served as a catalyst for industrial development.

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