- bipolar affective disorder
- bipolar illness
- manic depression
- manic-depressive psychosis
- A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- Any of several mood disorders characterized usually by alternating episodes of depression and mania or by episodes of depression alternating with mild nonpsychotic excitement -- called also bipolar affective disorder, bipolar illness, manic depression, manic-depressive psychosis.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.