Catalyst vs. Catalyzer — What's the Difference?

A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

To modify, especially to increase, the rate of (a chemical reaction) by catalysis.

(Chemistry) A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.

To bring about; initiate

One that precipitates a process or event, especially without being involved in or changed by the consequences

To produce fundamental change in; transform

(chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.

That which catalyzes.

Something that encourages progress or change.

A catalytic converter.

(literature) An inciting incident that sets the successive conflict into motion.

(automotive) A catalytic converter.

(fantasy) An object that facilitates the casting of a spell (such as a magic wand).

A substance that initiates or accelerates a chemical reaction without itself being affected; as, thousands of enzymes serve in concert as calaysts to produce the sequence of reactions we call "life"; the industrial production of cheap ammonia depended on finding a good catalyst.

Something that serves as a precipitating occasion for an event; as, the invasion acted as a catalyst to unite the country.

Something or someone that causes events to happen with itself being changed.

(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Something that causes an important event to happen;