catalyst

B2 大学 FREQ #21842 ★☆☆☆☆

n. 触媒, 接触剂, 催化剂, 刺激因素, 促进因素 [计] 催化剂

发音

UK /ˈkæt.ɪ.lɪst/
其它
CA /ˈkæt.ə.lɪst/
US /ˈkæt.ə.lɪst/
AU /ˈkæt.ə.lɪst/
CA /ˈkæɾ.ə.lɪst/
US /ˈkæɾ.ə.lɪst/
AU /ˈkæɾ.ə.lɪst/
NZ /ˈkɛt.ə.ləst/
NZ /ˈkɛɾ.ə.ləst/

词形变化

catalysts 复数 catalysts

别名

catylist katalyst

教材释义与例句

名词

催化剂；刺激因素

释义与例句

n. B2
  1. 1.

    A substance that increases the rate of a chemical reaction without being consumed in the process.

    触媒

    催化剂

    化学
  2. 2.

    Something that encourages progress or change.

    比喻

    Economic development and integration are working as a catalyst for peace.

    Rosa Parks was a true catalyst for change and she was only one person. Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G's classes to truly be catalysts for change.

  3. 3.

    An inciting incident that sets the successive conflict into motion.

    媒体
  4. 4.

    A catalytic converter.

    汽车 交通
  5. 5.

    An object that facilitates the casting of a spell (such as a magic wand).

词汇关系

名词

同义词 1

accelerator

反义词 1

anticatalyst

上位词 2

cause activator

下位词 3

enzyme biocatalyst platinum black

相关短语

Vandenberg catalyst stereospecific catalyst [化] 立体有择催化剂 triphase catalyst Adams's catalyst phase-transfer catalyst [化] 相转移催化剂 Grubb's catalyst Grubbs' catalyst Lindlar catalyst [化] 林德乐催化剂 Ziegler-Natta catalyst [化] 齐格勒-纳塔催化剂 Ziegler catalyst [化] 齐格勒催化剂

词源

From catalysis + -ist.

来源：wiktionary