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catalyst 'kætәlist

CET6 TOEFL IELTS GRE 柯林斯1⭐

释义

n. 触媒, 接触剂, 催化剂, 刺激因素, 促进因素
[计] 催化剂

英文释义

n. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
n. something that causes an important event to happen

词形变化

复数: catalysts

BNC词频排名: 8,852 | 当代语料库词频排名: 7,915