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catalyst

//ˈkætəlɪst//
English Definition
An agent that precipitates change.
中文释义
催化剂;促成因素
Example Sentence

The invention of the printing press served as a catalyst for the rapid spread of scientific knowledge across Europe.

印刷术的发明成为科学知识在欧洲迅速传播的催化剂。

Synonyms
stimulus trigger impetus
Antonyms
deterrent hindrance
Seen in practice — from the Digital SAT question bank

Historian Lucia Ferretti argues that the spread of coffeehouses in 17th-century Europe was the primary catalyst for the rise of public political debate among the merchant class.

From a Cross-Text Connections question · Craft and Structure

Historian Adaeze Nwosu argues that the spread of paper money in medieval China was the primary catalyst for the region's expanded long-distance trade networks.

From a Cross-Text Connections question · Craft and Structure

Historian Beatriz Nogueira argues that the widespread adoption of the printing press in 16th-century Europe was the primary catalyst for standardized national languages.

From a Cross-Text Connections question · Craft and Structure

💡
Memory Aid / 记忆技巧
cata- + lys(分解) → 加速反应者。
Know this word? Mark it mastered, or move on.
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Practice — Definition Match

Which choice best defines “catalyst”?

  1. A A typical model or pattern.
  2. B An agent that precipitates change.
  3. C A view or feeling; emotion.
  4. D In original, unspoiled condition.
Show answer

B — An agent that precipitates change.. “catalyst” means An agent that precipitates change..

Practice — Which Word Fits?

Which word means “An agent that precipitates change.”?

  1. A pristine
  2. B catalyst
  3. C sentiment
  4. D paradigm
Show answer

B — catalyst. “catalyst” means An agent that precipitates change..

Common questions about “catalyst”

What does “catalyst” mean?

catalyst — An agent that precipitates change.. In Chinese: 催化剂;促成因素.

How do you pronounce “catalyst”?

catalyst is pronounced //ˈkætəlɪst//.

How is “catalyst” used in a sentence?

The invention of the printing press served as a catalyst for the rapid spread of scientific knowledge across Europe. (印刷术的发明成为科学知识在欧洲迅速传播的催化剂。)

What are synonyms for “catalyst”?

stimulus, trigger, impetus — all close in meaning to catalyst (An agent that precipitates change.).

What is the opposite of “catalyst”?

deterrent, hindrance — each the opposite of catalyst (An agent that precipitates change.).

Is “catalyst” an SAT vocabulary word?

Yes. catalyst is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.

How can I remember “catalyst”?

cata- + lys(分解) → 加速反应者。

Progress / 学习进度
6%
through SAT Easy
This level: 0 mastered (0% of the level)
The Digital SAT tests vocabulary through Words in Context questions, never as a standalone definition. Learn the word, then use it against a real passage.