Meaning of CATALYST in English

CATALYST

transcription, транскрипция: [ ˈkætəlɪst ]

n. 1 Chem. a substance that, without itself undergoing any permanent chemical change, increases the rate of a reaction. 2 a person or thing that precipitates a change. [as CATALYSIS after analyst]

English main colloquial, spoken dictionary.      Английский основной разговорный словарь.