Steele-Richardson-Olszewski syndrome
noun [ U ] medical specialized uk/stiːlˌrɪtʃ.əd.sən.ɒlsˈzuː.ski ˌsɪn.drəʊm/ us/stilˌrɪtʃ.ɚd.sən.ɑːlsˈzuː.ski ˌsɪn.droʊm/
进行性核上性麻痹，进行性上眼神经核麻痹症，Steele-Richardson-Olszewski综合症
a fairly rare condition in which an old person loses control over the muscles in their eyes, face, and neck. It eventually leads to dementia (= loss of mental ability).