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.
Below, Iké speaks with Billboard about her debut album, playing her first solo Reggae Sumfest show, and how her bipolar disorder diagnosis shaped the album’s creation. Kyle Denis, Billboard, 18 Sep. 2025 Gomez—who has been vocal about her struggles with chronic autoimmune disease Lupus, bipolar disorder, anxiety and depression—has overseen all major changes or developments within the brand from day one. Dahvi Shira, Forbes.com, 17 Sep. 2025 People with bipolar disorder, schizophrenia, or neurological disorders were excluded. New Atlas, 16 Sep. 2025 The researchers said this was a good thing because lithium helps to regulate mood and is often prescribed to treat mood disorders such as depression and bipolar disorder. The Washington Post, San Diego Union-Tribune, 9 Sep. 2025 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 20 Sep. 2025.

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

Last Updated: - Updated example sentences
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