catalyst
Aussprache: [ˈkætəlɪst]
Wort
Kontext: „science“
(noun) a substance that helps a chemical reaction happen faster without being used up. It’s like when you add something to a recipe to make it cook better, but it doesn’t change itself.
Beispiel
The enzyme acted as a catalyst, speeding up the reaction in the lab.
Beispiel
Without the catalyst, the reaction took much longer and wasn’t as effective.
Beispiel
What catalyst did you use to make the reaction go faster?
Kontext: „change“
(noun) something that causes change or helps something important happen. It’s like a friend encouraging you to try something new or exciting.
Beispiel
The community event was a catalyst for many positive changes in the neighborhood.
Beispiel
Without a catalyst, the project failed to inspire any improvements.
Beispiel
What events can be a catalyst for change in your life?
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