coma

coma
/ˈkəumə; `komə/ n
state of deep unconsciousness, usu lasting a long time and caused by severe injury or illness 昏迷（状态）
    go into a coma 进入昏迷状态
    He was in a coma for several weeks. 他昏迷了几个星期.

牛津英汉双解词典