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  1. CATALYST Definition & Meaning - Merriam-Webster

    The meaning of CATALYST is a person or thing that provokes or speeds significant change or action. How to use catalyst in a sentence. Word History of Catalyst

  2. Catalyst | Examples, Definition, & Facts | Britannica

    Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions.

  3. CATALYST | definition in the Cambridge English Dictionary

    A catalyst is also a substance that causes or speeds a chemical reaction without itself being changed.

  4. CATALYST Definition & Meaning | Dictionary.com

    CATALYST definition: a substance that causes or accelerates a chemical reaction without itself being affected. See examples of catalyst used in a sentence.

  5. Catalyst - Definition, Meaning & Synonyms | Vocabulary.com

    A catalyst is an event or person causing a change. Getting kicked out of your parents' house might be a catalyst for becoming more independent.

  6. What Is a Catalyst? Understand Catalysis - Science Notes and Projects

    Sep 21, 2022 · In chemistry and biology, a catalyst is a substance the increases the rate of a chemical reaction without being consumed by it. Catalysis is the process of speeding up a reaction using a …

  7. What Is a Catalyst and How Does It Work? - sciencenewstoday.org

    May 8, 2025 · A catalyst is a substance that speeds up a chemical reaction without itself undergoing any permanent chemical change. In other words, it’s not consumed in the reaction—it merely facilitates it.

  8. DOE Explains...Catalysts | Department of Energy

    A catalyst is a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction.

  9. Catalystlifestyle | Shop Protection Cases For iPhone All Models

    Founded by a female adventure enthusiast who values precision and innovation, Catalyst is a premium brand specializing in meticulously designed cases to keep your Apple devices safe in any environemnt.

  10. Definition of catalyst - Chemistry Dictionary

    What is a Catalyst? A catalyst is a substance that speeds up a chemical reaction, but is not consumed by the reaction; hence a catalyst can be recovered chemically unchanged at the end of the reaction it …