autism/ˈɔ:tɪzəm; `ɔtɪzəm/ n[U](psychology 心) serious mental illness, esp of children, in which one becomes unable to communicate or form relationships with others 自向症, 孤独症（严重的精神病, 尤见於儿童, 患者无法与他人交往）.
牛津英汉双解词典