[1] : The Collaborative International Dictionary of English v.0.48

neurosis \neuro"sis\, n.; pl. neuroses. nl., fr. gr. ney^ron
   nerve.
   1. med. a functional nervous affection or disease, that is,
      a disease of the nerves without any appreciable change of
      nerve structure.
      1913 webster

   2. psychiatry 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.
      --mw10
      pjc
see also:
psychosis 

[2] : WordNet (r) 2.0

neurosis
     n : a mental or personality disturbance not attributable to any
         known neurological or organic dysfunction syn: neuroticism,
          psychoneurosis
     also: neuroses pl
see also:
neuroticism psychoneurosis neuroses 

[3] : Moby Thesaurus II by Grady Ward, 1.0

88 moby thesaurus words for "neurosis":
   abulia, accident neurosis, anxiety hysteria, anxiety neurosis,
   arteriosclerotic psychosis, association neurosis, battle fatigue,
   blast neurosis, brain disease, certifiability, combat fatigue,
   compensation neurosis, compulsion neurosis, conversion hysteria,
   conversion neurosis, crack-up, dementia paralytica, dipsomania,
   drug addiction, emotional disorder, emotional instability,
   expectation neurosis, fixation neurosis, folie du doute,
   frayed nerves, frazzled nerves, fright neurosis,
   functional nervous disorder, functional psychosis,
   general paralysis, general paresis, homosexual neurosis,
   hypochondria, hypochondriasis, hysteria, insanity, jangled nerves,
   maladjustment, manic-depressive psychosis, melancholia,
   mental disorder, mental illness, metabolic psychosis,
   moral insanity, nervous breakdown, nervous disorder,
   nervous prostration, neurasthenia, neuroticism,
   obsessional neurosis, occupational neurosis, organic psychosis,
   paralytic dementia, paranoia, pathological drunkenness,
   pathoneurosis, personality disorder, phobia, presenile dementia,
   prison psychosis, problems in living, psychasthenia,
   psychoneurosis, psychoneurotic disorder, psychopathia,
   psychopathia martialis, psychopathia sexualis,
   psychopathic condition, psychopathic personality, psychopathy,
   psychosis, raw nerves, reaction, regression neurosis,
   schizophrenia, senile dementia, senile psychosis, senility,
   sexual pathology, shattered nerves, shell shock,
   situational neurosis, situational psychosis, social maladjustment,
   syphilitic paresis, toxic psychosis, twanging nerves,
   war neurosis

Neurosis >> N Words
Neurosis, definition of term: Neurosis
neurosis_pag1.html

Phobic Neurosis >> P Words
Phobic Neurosis, definition of term: Phobic Neurosis
phobic+neurosis_pag1.html