#depressive_disorder__clinical_depression__depression  a state of depression and anhedonia so severe as to require clinical intervention
  supertype:  major_affective_disorder__majoraffectivedisorder__affective_disorder__affectivedisorder__emotional_disorder__emotionaldisorder__emotional_disturbance__emotionaldisturbance  any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
  subtype:  agitated_depression  a state of clinical depression in which the person exhibits irritability and restlessness
  subtype:  anaclitic_depression__anacliticdepression  severe and progressive depression in infants who lose their mother and do not get a suitable substitute
  subtype:  dysthymia__dysthymic_depression__dysthymicdepression  mild chronic depression; "I thought she had just been in a bad mood for thirty years, but the doctor called it dysthymia"
  subtype:  endogenous_depression  a state of depression for which there is no apparent precipitating cause
  subtype:  exogenous_depression__exogenousdepression__reactive_depression  an inappropriate state of depression that is precipitated by events in the person's life (to be distinguished from normal grief)
  subtype:  major_depressive_episode  (psychiatry) a state of depression with all the classic symptoms (anhedonia and lethargy and sleep disturbance and despondency and morbid thoughts and feelings of worthlessness and sometimes attempted suicide) but with no known organic dysfunction
     subtype:  involutional_depression  a major depressive episode associated with the climacteric
     subtype:  unipolar_depression  a major depressive episode that occurs without the manic phase that occurs in the classic form of bipolar disorder
  subtype:  neurotic_depression  a term used for any state of depression that is not psychotic
  subtype:  psychotic_depression__psychoticdepression  a state of depression so severe that the person loses contact with reality and suffers a variety of functional impairments
  subtype:  retarded_depression  a state of clinical depression in which the individual is lethargic and slow to initiate action

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