mood disorder

noun

: any of several psychological disorders (such as major depressive disorder or bipolar disorder) characterized by abnormalities of emotional state

called also affective disorder

Examples of mood 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.
The good news is that postpartum mood disorders are highly treatable. Parents, 21 May 2026 In Utah, The Bridge Recovery Center serves guests dealing with chronic conditions such as fibromyalgia, depression, lupus and mood disorders. Hanna Wickes, Charlotte Observer, 20 May 2026 The analyses of these complex neural pathways and the data could eventually unlock therapies for cognitive and emotional conditions, including dementia, mood disorders, and various impairments in cognitive control. Mrigakshi Dixit, Interesting Engineering, 12 May 2026 Schizoaffective disorder is a mental health condition that is marked by a mix of schizophrenia symptoms, such as hallucinations and delusions, and mood disorder symptoms, such as depression, mania and a milder form of mania called hypomania, per the Mayo Clinic. Angela Andaloro, PEOPLE, 9 May 2026 See All Example Sentences for mood disorder

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of mood disorder was in 1969

Browse Nearby Words

Cite this Entry

“Mood disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mood%20disorder. Accessed 31 May. 2026.

Kids Definition

mood disorder

noun
: any of several psychological disorders characterized by abnormalities of emotional state

Medical Definition

mood disorder

noun
: any of several psychological disorders characterized by abnormalities of emotional state and including especially major depressive disorder, dysthymia, and bipolar disorder

called also affective disorder

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster