Word · Frequency #8852
Fully loadedcatalysts
催化剂；触媒
catalysts is the plural of catalyst.
核心释义
catalyst
- 1.
增加化学反应速率而不被消耗的物质。
A substance that increases the rate of a chemical reaction without being consumed in the process.
- 2.
(化学)一种引发或加速化学反应而自身不受影响的物质
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
- 3.
促进进步或改变的事物。
Something that encourages progress or change.
- 4.
引发重要事件的事物
something that causes an important event to happen
- 5.
引发后续冲突的导火索事件。
An inciting incident that sets the successive conflict into motion.
- 6.
催化转化器
A catalytic converter.
- 7.
施法媒介(如魔杖)
An object that facilitates the casting of a spell (such as a magic wand).
增加化学反应速率而不被消耗的物质。；(化学)一种引发或加速化学反应而自身不受影响的物质；促进进步或改变的事物。；引发重要事件的事物；引发后续冲突的导火索事件。
用法In use
Certain enzymes work as catalysts to speed up digestion in the human body.
用法提示：catalyst 是名词，指能加速化学反应而自身不参与消耗的物质。
The chemist added a catalyst to the mixture to make the reaction happen faster.
用法提示：句中 catalyst 为可数名词，表示用来加速化学反应的物质。
A catalyst remains unchanged after the chemical reaction is complete.
用法提示：catalyst 作主语，指反应前后自身不变的催化剂。
the invasion acted as a catalyst to unite the country
catalyst for sth
表示‘导致某事发生的促进因素’。
The election was a catalyst for political change in the country.
这次选举是该国政治变革的催化剂。
相关词与表达Connections
搭配Collocations
- a chemical catalyst
- 化学催化剂
- The reaction requires a chemical catalyst to proceed.这个反应需要一种化学催化剂才能进行。
- a catalyst for change
- 变革的催化剂
- The protest was a catalyst for political change.这场抗议是政治变革的催化剂。
- act as a catalyst
- 充当催化剂
- His speech acted as a catalyst for the movement.他的演讲充当了这场运动的催化剂。
- a powerful catalyst
- 强大的催化剂
- Education is a powerful catalyst for social progress.教育是社会进步的强大催化剂。
- a major catalyst
学习提示Learner notes
记忆技巧Memory Tip
猫（cat）踩油门加速，自己不动——催化剂。
语境与语域Context & Register
语域：neutral 常见场景：chemistry、figurative use 该词在化学领域为专业术语，在日常比喻用法中也常见，因此注册标记为中性。通常用于正式或半正式语境。
语法说明Grammar Note
常用作可数名词，常见搭配：a catalyst for (change, growth, etc.)
发音与拼写Pronunciation & Spelling
Genuine sound matches: analyst, journalist, specialist, capitalist, naturalist (all end with /əlɪst/ and stress on first syllable). Artist ends in /ɪst/ but is two syllables; it is a common lookalike with a different rhythm.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.