季き節せつ性せい情じょう動どう障しょう害がい

noun

seasonal affective disorder; SAD

A psychiatric term for a type of depression that occurs at a specific season, usually winter.

• 季き節せつ性せい情じょう動どう障しょう害がいは、冬ふゆに日にっ照しょう時じ間かんが短みじかくなることで発はっ症しょうしやすい。

  Seasonal affective disorder tends to occur in winter when daylight hours become shorter.