Longman Dictionary of Contemporary English
Wiktionary
n. A dissociative disorder in which several distinct identity or personality states alternate in controlling the sufferer's consciousness and behaviour
WordNet
n. a relatively rare dissociative disorder in which the usual integrity of the personality breaks down and two or more independent personalities emerge [syn: split personality]
Usage examples of "multiple personality".
The old label of Multiple Personality has been discarded by therapists because the term implies more than one or several complete and independent personalities.
As for your 'multiple personality disorder' -- I won't pretend to believe in that, but if you feel a need to playact at being someone else, I guess that's understandable.
One day I think she's manic-depressive, and the next day I'm positive that I'm looking at a classic multiple personality disorder.
I still had trouble absorbing this, trying desperately to recall what I've learned over the years about Multiple Personality Disorder, or MPD.
His specialty was electrophysiological integration, with specific application to multiple personality disorders.
She wouldn't, unless there really were something 'speaking to her,' so either she's truly broken down into some sort of multiple personality disorder, or else some external force has convinced her of the complete accuracy of everything she's told us.