Definition of seasonal affective disorder in English:

seasonal affective disorder


  • Depression associated with late autumn and winter and thought to be caused by a lack of light.

    • ‘For many, the lack of sunlight contributes to seasonal affective disorder, depression that grips most strongly in the dead of winter.’
    • ‘For people with a type of depression called seasonal affective disorder, this need for light takes on greater significance.’
    • ‘But, seasonal affective disorder goes well beyond those symptoms.’
    • ‘Episodes of psychosis recurring each autumn sounds like an extreme version of seasonal affective disorder.’
    • ‘Many Americans suffer from the form of depression known as seasonal affective disorder, with a strong peak in the fall and winter.’