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单词 seasonal affective disorder
释义

WordReference Random House Unabridged Dictionary of American English © 2024
seasonal affective disorder, 
  1. Psychiatryrecurrent winter depression characterized by oversleeping, overeating, and irritability, and relieved by the arrival of spring or by light therapy. Abbr.: SAD
  • 1980–85

Collins Concise English Dictionary © HarperCollins Publishers::
seasonal affective disorder n
  1. a state of depression sometimes experienced by people in winter, thought to be related to lack of sunlight
    Abbreviation: SAD
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