multiple personality disorder

noun

variants or less commonly multiple personality
: a personality disorder that is characterized by the presence of two or more distinct and complex identities or personality states each of which becomes dominant and controls behavior from time to time to the exclusion of the others and results from disruption in the integrated functions of consciousness, memory, and identity : dissociative identity disorder

Note: The term dissociative identity disorder is now preferred over multiple personality disorder and multiple personality especially in medical contexts.

Examples of multiple personality disorder in a Sentence

Recent Examples on the Web In director Joe Lynch's body-swap horror movie Suitable Flesh, Heather Graham plays psychiatrist Dr. Elizabeth Derby, who initially concludes that her new patient (Judah Lewis) is suffering from multiple personality disorder. Clark Collis, EW.com, 9 June 2023 Schizophrenia was the most common diagnosis (25 students), followed by multiple personality disorder (three). Seriously Science, Discover Magazine, 19 Dec. 2014 Dissociative identity disorder used to be called multiple personality disorder. Maureen Maher, CBS News, 22 July 2021 Following the death of his father, Aaron checked himself into rehab, where physicians diagnosed him with schizophrenia and multiple personality disorder. Ilana Kaplan, Peoplemag, 10 Aug. 2023 Angel Carter Talks Breaking 'Generational Dysfunction' with Mental Health After Twin Brother Aaron's Death Following the death of his father, Aaron checked himself into rehab where physicians diagnosed him with schizophrenia and multiple personality disorder. Vanessa Etienne, Peoplemag, 9 Aug. 2023 Sullivan is a character loosely based on Billy Milligan, who was the first person to successfully use multiple personality disorder as a defense in court. Christopher Brito, CBS News, 8 June 2023 The Canadian philosopher Ian Hacking, who died May 10, found new things to say about the reality of everything from multiple personality disorder to race to electrons. Oliver Traldi, Washington Examiner, 1 June 2023 The sister has schizophrenia and bipolar and multiple personality disorders. Blake Nelson, San Diego Union-Tribune, 16 Apr. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'multiple personality disorder.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1972, in the meaning defined above

Time Traveler
The first known use of multiple personality disorder was in 1972

Dictionary Entries Near multiple personality disorder

Cite this Entry

“Multiple personality disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/multiple%20personality%20disorder. Accessed 22 Apr. 2024.

Medical Definition

multiple personality disorder

noun
: a personality disorder that is characterized by the presence of two or more distinct and complex identities or personality states each of which becomes dominant and controls behavior from time to time to the exclusion of the others and results from disruption in the integrated functions of consciousness, memory, and identity : dissociative identity disorder

Note: The term dissociative identity disorder is now preferred over multiple personality disorder especially in medical contexts.

abbreviation MPD
Last Updated: - Updated example sentences
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