Any of various mental or emotional disorders,such as hypochondria or neurasthenia,arising from no apparent organic lesion or change and involving symptoms such as insecurity,anxiety,depression,and irrational fears.

• 神经官能症各种精神或情绪紊乱，如臆想病或神经衰弱，并不是由明显的器官损害或改变引起。表现为无安全感、焦虑、忧郁和无理智的恐惧感等症状