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brain

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noun British English pronunciation: brain /breɪn/ 
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singularbrain
pluralbrains
Other entries for this word
  1. 1
    [countable] the organ inside your head that allows you to think and feel, and controls your body

    The human brain is divided into two halves.

    The illness had affected his brain.

    Thesaurus entry for this meaning of brain
    1. a.
      [only before noun] belonging to or connected with the brain

      a brain tumour/scan/operation

      brain activity/function

      Thesaurus entry for this meaning of brain
    2. b.

      brains

       [plural] the brain of an animal cooked and eaten as food
      Thesaurus entry for this meaning of brain
  2. 2
    [countable] [often plural] mental ability or intelligence

    She felt that she could almost see his brain working.

    You have to use your brains in this job.

    have brains/a brain (=be intelligent):

    He's good-looking, and he's got brains.

    Thesaurus entry for this meaning of brain
    1. a.
      [countable] an intelligent person

      The best brains in the country have failed to solve this problem.

      Thesaurus entry for this meaning of brain

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This is the British English definition of brain. View American English definition of brain.

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