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concentration - definition and synonyms


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noun concentration pronunciation in American English /ˌkɑnsənˈtreɪʃ(ə)n/
Word Forms
  1. 1
    [uncountable] the process of giving all your attention to something
    It took all his concentration to stay awake.
    lose concentration: She lost concentration for a moment and slipped.
    a lapse of concentration (=a short period when you do not concentrate): He had a little lapse of concentration and lost the game.
    Synonyms and related words
  2. 2
    [countable/uncountable] a large number of people or things in one area or a large amount of a particular thing
    large concentrations of Christians in this part of the city
  3. 3
    [countable/uncountable] chemistry the amount of a substance that is present in something
    An investigation found high concentrations of cancer-causing chemicals on the property.
  4. 4
    American a major at a college or university
    Synonyms and related words


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