bipolar disorder(redirected from Polar behaviour)
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A mood disorder characterized by manic or hypomanic episodes typically alternating with depressive episodes. Also called manic-depressive disorder.
bipolar affective disorderor
(Psychiatry) a mental health problem characterized by an alternation between extreme euphoria and deep depression
an affective disorder characterized by periods of mania alternating with depression, usu. interspersed with relatively long intervals of normal mood; manic-depressive illness.
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|Noun||1.||bipolar disorder - a mental disorder characterized by episodes of mania and depression|
affective disorder, emotional disorder, emotional disturbance, major affective disorder - any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant