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catalytic + noun
“catalytic converter”是固定说法，指汽车上净化尾气的催化转化器。
The catalytic converter in modern cars reduces exhaust pollution.
现代汽车中的催化转化器减少了尾气污染。
催化的；起催化作用的
先理解核心含义，再看它在真实句子里的用法。
催化的；起催化作用的
relating to, causing, or involving catalysis
The catalytic converter in modern cars reduces exhaust pollution.
现代汽车中的催化转化器减少了尾气污染。
与催化剂有关的；促进化学反应的。
Of or relating to a catalyst; having properties facilitating chemical reaction or change.
The new filter uses a catalytic process to break down harmful gases.
这种新过滤器利用催化过程来分解有害气体。
Catalytic converters in cars help reduce air pollution.
汽车中的催化转化器有助于减少空气污染。
The team studied the catalytic effect of the metal on the reaction.
该团队研究了这种金属对反应的催化作用。
“catalytic converter”是固定说法，指汽车上净化尾气的催化转化器。
The catalytic converter in modern cars reduces exhaust pollution.
现代汽车中的催化转化器减少了尾气污染。
此结构常用比喻义，表示对结果起促成或推动作用。
Her leadership was catalytic in the success of the project.
她的领导力对项目的成功起到了推动作用。
“catalytic effect”强调引起连锁反应或加速变化。
Low interest rates can have a catalytic effect on economic recovery.
低利率能对经济复苏产生催化作用。
Not this
The catalytic is added to speed up the reaction.
Use this
The catalyst is added to speed up the reaction.
"catalytic" 是形容词，不能单独充当名词；这里需要名词 "catalyst"（催化剂）作主语。
Not this
This enzyme catalytic the breakdown of hydrogen peroxide.
Use this
This enzyme catalyzes the breakdown of hydrogen peroxide.
"catalytic" 是形容词，不可作谓语动词；表达“催化”这一动作应用动词 "catalyze"，主语为酶时用第三人称单数 "catalyzes"。
Not this
This substance has catalytic role in the reaction.
Use this
This substance has a catalytic role in the reaction.
role 在此是可数名词单数，前面需要不定冠词 "a"；中文没有冠词，容易漏掉。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
催化转化器
The catalytic converter reduces harmful emissions from the car.
催化转化器减少了汽车的有害排放。
催化反应
The enzyme speeds up a catalytic reaction in the cell.
这种酶加速了细胞中的催化反应。
催化活性
Researchers measured the catalytic activity of the new material.
研究人员测量了这种新材料的催化活性。
催化作用
The metal has a strong catalytic effect on the reaction.
这种金属对该反应有很强的催化作用。
催化过程
The industrial catalytic process requires high temperature.
这种工业催化过程需要高温。
催化剂般的作用
She played a catalytic role in the peace talks.
她在和谈中发挥了催化剂般的作用。
催化作用；推动或引发变化的作用
Her speech had a catalytic effect on the protest movement.
她的演讲对这场抗议运动产生了催化作用。
催化角色；起推动或促成作用
The central bank played a catalytic role in stabilizing the financial system.
中央银行在稳定金融体系方面发挥了推动作用。
转折性时刻；起催化作用的关键节点
The election became a catalytic moment for political reform.
这次选举成为政治改革的一个关键转折点。
Use catalytic naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：开头的 cat 像一只猫在实验室里“催”促反应，瞬间加速——催化就是加速化学反应。
语域：formal 常见场景：化学与化工、环境科学、学术文献 该词多用于科学技术语境，属于正式用语；日常口语中较少出现。
Words with the same stressed vowel and ending /-ˈlɪtɪk/ as catalytic include analytic, electrolytic, hydrolytic, paralytic, and lytic: all rhyme with catalytic. Italic looks similar because of its spelling but is pronounced /ɪˈtælɪk/, with stress on the second syllable and a different vowel sound, so it does not rhyme. Critical ends in /-ɪkəl/ and is not a rhyme either.
Dictionary facts from ECDICT, WIKTIONARY.