psy.chas.the.ni.an.(名词)A neurotic disorder characterized by phobias, obsessions, compulsions, or excessive anxiety. No longer in scientific use.神经衰弱:一种神经机能失调,以恐惧症、强迫意志、强迫作用为特征,不再在科学上使用【引伸】psy.chasthen.ic