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catalyst - definition and synonyms


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noun [countable] catalyst pronunciation in British English /ˈkætəlɪst/
Word Forms
  1. 1
    someone or something that causes something to happen or change
    catalyst for:

    The new development will act as a catalyst for growth in business and tourism.

    Synonyms and related words
  2. 2
    chemistry a substance that causes a chemical reaction to happen more quickly but is not affected itself. An enzyme is a type of catalyst.


to fall over forwards so that your face hits the ground or another surface

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the activity of exploring abandoned buildings and other manmade structures

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