1. observation tower a structure commanding a wide view of its surroundings
  2. observation station a station set up for making observations of something
  3. observation post an elevated post affording a wide view
  4. observation dome lookout consisting of a dome-shaped observatory
  5. conversion disorder a mental disorder characterized by the conversion of mental conflict into somatic forms (into paralysis or anesthesia having no apparent cause)
  6. brain disorder any disorder or disease of the brain
  7. observation the act of taking a patient look
  8. depressive disorder a state of depression and anhedonia so severe as to require clinical intervention
  9. organic disorder disorder caused by a detectable physiological or structural change in an organ
  10. depersonalization disorder emotional dissociative disorder in which there is loss of contact with your own personal reality accompanied by feelings of unreality and strangeness
  11. Operation Desert Storm the United States and its allies defeated Iraq in a ground war that lasted 100 hours (1991)
  12. depersonalisation disorder emotional dissociative disorder in which there is loss of contact with your own personal reality accompanied by feelings of unreality and strangeness
  13. dissociative disorder dissociation so severe that the usually integrated functions of consciousness and perception of self break down
  14. affective disorder any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
  15. respiratory disorder a disease affecting the respiratory system
  16. conservation of matter a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
  17. emotional disorder any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
  18. inherited disorder a disease or disorder that is inherited genetically
  19. personality disorder inflexible and maladaptive patterns of behavior
  20. nervous disorder a disorder of the nervous system