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单词库 \ 英汉词典 \

catalyst是什么意思

catalyst

英[ˈkætəlɪst] 美[ˈkætəlɪst]

n. <化>触媒，催化剂，〈比喻〉触发因素，促进因素，〈口〉有感染力的人；

复数：catalysts;

相关单词 anticatalyst biocatalyst catalysts cocatalyst

柯林斯高阶英汉双解学习词典释义

N-COUNT

催化剂;诱因;诱导者

You can describe a person or thing that causes a change or event to happen as a catalyst .
例句
I very much hope that this case will prove to be a catalyst for change... 我非常希望这起事件能催生变革。 He said he saw the bank's role as a catalyst to encourage foreign direct investment. 他说，他认为银行就应该起到刺激外国直接投资的作用。
N-COUNT

(化学)催化剂

In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly.

英汉词典释义

n.
<化>催化剂,触媒
A catalyst is a substance which speeds up a chemical reaction. 催化剂是一种能加速化学反应的物质。 It acts as a catalyst in the process of fermentation. 它在发酵过程中起触媒的作用。
促进因素;有感染力的人,能激发对方的人
The workers’ demand for better conditions was a catalyst for social change. 工人们要求改善工作条件促进了社会变革。

英英词典释义

Noun
1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
2. something that causes an important event to happen;
"the invasion acted as a catalyst to unite the country"

行业词典

体育：催化剂；
农学：催化剂；
冶金学：催化剂；
化学：催化剂；
化工：催化剂；
医学：催化剂：能引起催化作用的任何物质；
航天：催化剂；

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