A severe mental disorder,with or without organic damage,characterized by derangement of personality and loss of contact with reality and causing deterioration of normal social functioning.

• 精神错乱一种严重的精神病，有时机体受到损害，有时没有，以人格错乱和与现实失去联系为特征，引起患者的正常社会性职能的衰退。