split personality disorder
noun/ˌsplɪt pɜːsəˈnæləti dɪsɔːdə(r)/
/ˌsplɪt pɜːrsəˈnæləti dɪsɔːrdər/
(also more frequent multiple personality disorder)
(old-fashioned, psychology)- an old term for dissociative identity disorder
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split personality disorder