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Related to obsessive-compulsive disorder: Post-traumatic Stress Disorder, Obsessive-compulsive personality disorder
ob·ses·sive-com·pul·sive disorder(əb-sĕs′ĭv-kəm-pŭl′sĭv, ŏb-)
Abbr. OCD A psychiatric disorder characterized by the presence of either obsessions (repeated, unwanted, often distressing thoughts), or compulsions (the feeling of being driven to repeatedly perform certain behaviors or mental activities), or both, with the symptoms being severe enough to impair normal functioning.
(Psychiatry) psychiatry an anxiety disorder in which patients are driven to repeat the same act, such as washing their hands, over and over again, usually for many hours. Abbreviation: OCD