Scrabble Dictionary
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| Scrabble US | (13 Points) | |
| Scrabble UK | (13 Points) | |
| Words With Friends | (14 Points) |
Catalyst
ˈkatəlɪst
Catalyst definitions
noun
catalyst
catalysts
- a person or thing that precipitates an event
"the prime minister's speech acted as a catalyst for debate"
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
"chlorine acts as a catalyst promoting the breakdown of ozone"