bipolar disorder

noun

: any of several psychological disorders of mood characterized usually by alternating episodes of depression and mania

called also bipolar illness, manic depression

Examples of bipolar disorder in a Sentence

Recent Examples on the Web
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Wilfredo Ortega Rodriguez, 58, was sent to Villa Rosa IV with psychiatric diagnoses of schizophrenia and bipolar disorder, a health department report said. Carol Marbin Miller, Miami Herald, 2 Apr. 2026 Gomez has previously attributed changes in her voice and appearance to her ongoing battle with lupus and her bipolar disorder diagnosis. Chanel Vargas, InStyle, 2 Apr. 2026 Retinal images also can reveal physiological changes in the brain associated with psychiatric disorders such as schizophrenia and bipolar disorder, Appaji says. IEEE Spectrum, 2 Apr. 2026 He was diagnosed with bipolar disorder at 26 years old after an intense episode. Clayton Davis, Variety, 2 Apr. 2026 See All Example Sentences for bipolar disorder

Word History

First Known Use

1972, in the meaning defined above

Time Traveler
The first known use of bipolar disorder was in 1972

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Cite this Entry

“Bipolar disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bipolar%20disorder. Accessed 5 Apr. 2026.

Kids Definition

bipolar disorder

noun
: any of several psychological disorders of mood characterized by alternating episodes of depression and mania

Medical Definition

bipolar disorder

noun
: any of several mood disorders characterized usually by alternating episodes of depression and mania

Note: The mania experienced in bipolar disorder may be of the euphoric or irritable type or both.

called also bipolar affective disorder, bipolar illness, manic depression, manic-depressive illness

compare major depressive disorder

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