1 [U] the scientific study of the mind and the way that people behave 心理学: child psychology 儿童心理学 ☞Compare psychiatry. 与psychiatry比较。

2 [sing] the type of mind that a person or group of people has 心理: If we understood the psychology of the killer we would have a better chance of catching him. 如果我们懂得凶手的心理，捉到他的可能性就会大一点。