noun
Clinical term used in psychiatry; often abbreviated as 双極性 in medical contexts.
双極性障害は気分の波が激しい病気です。
Bipolar disorder is an illness with severe mood swings.
Older term for bipolar disorder, now less common in clinical settings but still understood.
Compound of 双極 (bipolar) + 性 (nature) + 障害 (disorder), a direct translation of the English medical term.