People with bipolar illness fluctuate between two mood extremes—mania and depression. Paul Donohue
Word History
First Known Use
1972, in the meaning defined above
Medical Definition
bipolar illness
noun
: bipolar disorder
Bipolar illness is characterized by manic episodes of abnormally elated mood, increased energy, rapid speech, irritability, impulsivity, hostility and psychosis, and periods of severe depression. Jamie Talan, Newsday