manic depression
noun /ˌmænɪk dɪˈpreʃn/
/ˌmænɪk dɪˈpreʃn/
[uncountable] (old-fashioned)- bipolar disorder (= a mental illness causing somebody to change suddenly from being extremely depressed to being extremely happy)
Topics Illnessc2躁狂抑郁症:双相情感障碍