neurosis

1. N-VAR Neurosis is a mental condition which causes people to have unreasonable fears and worries over a long period of time. 神经机能病; 神经官能症

He was anxious to the point of neurosis. 他的忧虑达到了神经机能病症状的程度。

She had a neurosis about chemicals and imagined them everywhere doing her harm. 她的神经官能症对化学药品有反应，这让她总是幻想药品对自己有害。