arstiteaduse haru, mis tegeleb psüühikahäirete ravi, uurimise ja ennetamisega, arstiteaduse haru, mis käsitleb vaimuhaiguste põhjusi, tunnuseid, kulgu, ravi ja vältimist, the branch of medicine concerned with the study, treatment, and prevention of disorders of the mind, including psychoses and neurosis, emotional maladjustments, etc., the study and treatment of mental illness, emotional disturbance, and abnormal behaviour, a branch of medicine that deals with mental, emotional, or behavioral disorders