seasonal affective disorder

noun

medical : an illness that makes people feel sad and tired during the winter because there is less light during the day

Full Definition of SEASONAL AFFECTIVE DISORDER

: depression that tends to recur as the days grow shorter during the fall and winter —abbreviation SAD

See seasonal affective disorder defined for English-language learners

1983

Medical Dictionary

noun sea·son·al affective disorder \ˌsēz-^ən-əl-\

: depression that tends to recur as the days grow shorter during the fall and winter—abbreviation SAD

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