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catalyst [catalysts]▼(substance which increases the rate of a chemical reaction without being consumed in the process)noun[UK: ˈkæ.tə.lɪst] [US: ˈkæ.tə.ləst]
catalyzer [catalyzers]▼(that which catalyzes)noun[UK: ˈkæ.tə.laɪ.zə] [US: ˈkæ.tə.laɪ.zə]
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