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TOEFL IELTS BNC: 8852 COCA: 7915

catalyst

1 ENTRIES FOUND:
catalyst /ˈkætələst/ noun
plural catalysts
catalyst
/ˈkætələst/
noun
plural catalysts
Learner's definition of CATALYST
[count]
technical : a substance that causes a chemical reaction to happen more quickly催化剂
: a person or event that quickly causes change or action刺激因素

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