The most common use of the word is with the denotation of <span><em>a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
</em>It can also be used as to mean: <em>A person or thing that precipitates an event</em><em> </em> In all, a catalyst is something, or someone, that causes an event to occur. <em> I hope this helped! :)
