multiple personality disorder
noun🔊/ˌmʌltɪpl ˌpɜːsəˈnæləti dɪsɔːdə(r)/
🔊/ˌmʌltɪpl ˌpɜːrsəˈnæləti dɪsɔːrdər/
(also less frequent split personality disorder)
(a rare condition in which a person seems to have one or more different personalities 多重人格障碍