catalyst definition

  • noun:
    • Chemistry A substance, generally utilized in small amounts relative to the reactants, that modifies and advances the rate of a reaction without getting consumed in the process.
    • One that precipitates a process or event, especially without being involved in or changed by the consequences: "A free press ... has remained ... a vital catalyst to an informed and responsible electorateā€¯ ( Robert O'Neal).
    • A substance that increases the rate of a chemical effect without having to be used in the act.
    • somebody or something like that that encourages progress or modification.
    • A catalytic converter.
    • a substance that initiates or accelerates a chemical reaction without it self becoming impacted.
    • something that functions as a precipitating event for a meeting.
    • something or somebody that triggers occasions to take place with itself becoming changed.
    • In real biochemistry just like catalytic broker (which see).
    • something that causes a significant event to happen
    • (chemistry) a substance that initiates or accelerates a chemical effect without itself becoming impacted

Related Sources

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