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reduction - definition and synonyms


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noun reduction pronunciation in British English /rɪˈdʌkʃ(ə)n/
Word Forms
  1. 1
    [countable/uncountable] the process or result of making something smaller or less in amount, size, importance etc
    reduction in: There has been a dramatic reduction in the birth rate.
    reduction of: The treaty committed each side to a reduction of 30 per cent in its stock of weapons.
  2. 2
    [countable] the amount by which the price of something is reduced
    We are offering special price reductions on computers this month.
    reduction for: £50 reduction for all guests staying 14 nights in June
  3. 4
    [countable/uncountable] chemistry a chemical reaction that produces an increase in hydrogen or a loss of oxygen


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