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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Orange County gives the association $20,000 a year to pay for prescription drugs for those with more severe conditions like bipolar disorder and schizophrenia. Michael Cuglietta, The Orlando Sentinel, 13 Feb. 2026 Psychiatric and emotional effects of OSA can also be associated with cognitive decline, and may include irritability, anxiety, depression, and bipolar disorder. Heidi Moawad, Verywell Health, 9 Feb. 2026 Another failed to act even after being told about Abigail's mental illness and history of bipolar disorder. Kurt Knutsson, FOXNews.com, 6 Feb. 2026 During a 2019 interview with David Letterman, Ye had discussed the trauma of the first time he was hospitalized for bipolar disorder. Anna Peele, Vanity Fair, 6 Feb. 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 15 Feb. 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

More from Merriam-Webster on bipolar disorder

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