catalyseur

Definitions of catalyseur
  1. noun
    (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
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    types:
    enzyme
    any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
    type of:
    activateur
    (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription
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