Obsessive compulsive disorder/Definition

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Obsessive compulsive disorder [r]: An anxiety disorder characterized by recurrent, persistent obsessions or compulsions. Obsessions are the intrusive ideas, thoughts, or images that are experienced as senseless or repugnant. Compulsions are repetitive and seemingly purposeful behavior which the individual generally recognizes as senseless and from which the individual does not derive pleasure although it may provide a release from tension.

This definition is at least in part based on: Anonymous (2023), Obsessive compulsive disorder (English). Medical Subject Headings. U.S. National Library of Medicine.