manic-depressive psychosis n 1: a mental disorder characterized by episodes of mania and depression [syn: {bipolar disorder}, {manic depression}, {manic depressive illness}, {manic-depressive psychosis}]
manic-depressive psychosis \manic-depressive psychosis\ n. (Med.), A mental disorder characterized by alternating episodes of mania and depression. Syn: bipolar disorder, manic depression, manic depressive illness. [WordNet 1.5]