dissociative identity 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 that results from disruption in the integrated functions of consciousness, memory, and identity : multiple personality disorder

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

Examples of dissociative identity 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.
Isaac plays Marc Spector, a man suffering from dissociative identity disorder and gifted with abilities by the Egyptian god Khonshu. Ross Rosenfeld, Newsweek, 26 Feb. 2025 Additionally, Spector as a character is diagnosed with dissociative identity disorder, meaning that multiple personalities exist in his head. Nola Pfau, Vulture, 17 Apr. 2025 Among their lofty goals was a Pi that had multiple personalities, like a cyborg Sybil with a dissociative identity disorder. IEEE Spectrum, 1 Apr. 2025 For one thing, repressed and recovered memories can frequently play a role in people’s experience of dissociative identity disorder, which, while not well understood, reportedly impacts millions of people. Aja Romano, Vox, 7 Dec. 2018 See All Example Sentences for dissociative identity disorder

Word History

First Known Use

1993, in the meaning defined above

Time Traveler
The first known use of dissociative identity disorder was in 1993

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Dissociative identity disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dissociative%20identity%20disorder. Accessed 15 May. 2025.

Medical Definition

dissociative identity 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 that results from disruption in the integrated functions of consciousness, memory, and identity : multiple personality disorder

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

More from Merriam-Webster on dissociative identity disorder

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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