how to pronounce catalyst


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An example use of catalyst in a speech by a native speaker of american english:

“… to act as a catalyst for the immediate …”

meanings of catalyst


  1. A catalytic converter.
  2. Someone or something that encourages progress or change.
  3. An inciting incident that sets the successive conflict into motion.
  4. A substance that increases the rate of a chemical reaction without being consumed in the process.