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catalyst
('k/&/t/-/l/I/st )

noun (n)

  • (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected(noun.substance)
    Synonym:
    accelerator
    Antonym:
    anticatalyst
    source: wordnet30
  • something that causes an important event to happen(noun.person)
    Example:
    The invasion acted as a catalyst to unite the country.
    source: wordnet30
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Vietnamese Word Index:
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