neurosis

A psychological state characterized by excessive anxiety or insecurity, compensated for by various defense mechanisms and lacking evidence of neurologic or other organic disease. No longer used in psychiatric diagnosis.

A nervous disease without recognizable anatomical lesion, as epilepsy, hysteria, neuralgia, etc.

In neurology, a process of nervous excitation: used thus generally only in opposition to psychosis, a mental process.

A functional nervous affection or disease, that is, a disease of the nerves without any appreciable change of nerve structure.

a mental or emotional disorder that affects only part of the personality, and involves less distorted perceptions of reality than a psychosis. As used in medicine, anxiety is a prominent characteristic, and the condition may be accompanied by psychosomatic symptoms. Phobias and compulsive behavior are common varieties.

A mental disorder, less severe than psychosis, marked by anxiety or fear

a mental or personality disturbance not attributable to any known neurological or organic dysfunction