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CEFR C2 — Proficiency

Catalyst

Definition

(formal, scientific) A substance that speeds up a chemical reaction without being consumed or permanently altered in the process. In a broader sense, anything that precipitates an event or triggers a significant change. Typically collocates with 'for', 'in', 'of', or 'to'.

Example Sentences

1The introduction of a catalyst in the reaction mixture significantly reduced the activation energy required for the reaction to proceed.
2The economic crisis served as a catalyst for the government to implement long-overdue structural reforms.
3In the context of social movements, charismatic leaders often act as catalysts for mobilising public opinion and galvanising collective action.
4The discovery of a new enzyme has the potential to be a catalyst for the development of novel therapeutic strategies in the treatment of cancer.
5There is a growing recognition that education can be a powerful catalyst for personal growth, social mobility, and economic development.

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