Meaning of CATALYST in English

CATALYST

transcription, транскрипция: [ ˈka-tə-ləst ]

noun

Date: 1902

1. : a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temperature) than otherwise possible

2. : an agent that provokes or speeds significant change or action

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.