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obsessive-compulsive disorder

British  

noun

  1.  OCDpsychiatry 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

obsessive-compulsive disorder Scientific  
/ əb-sĕsĭv-kəm-pŭlsĭv /
  1. A psychiatric disorder characterized by the persistent intrusion of repetitive, unwanted thoughts which may be accompanied by compulsive actions, such as handwashing. The individual cannot voluntarily prevent these thoughts or actions, which interfere with normal functioning.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Most of his teachers were ill-equipped to handle his behavioral problems, later diagnosed as attention-deficit hyperactivity disorder and obsessive-compulsive disorder.

From The Wall Street Journal • Mar. 1, 2026

Many neurological and psychiatric conditions, including schizophrenia, obsessive-compulsive disorder, and some forms of brain injury, can make it difficult for people to apply existing skills in new situations.

From Science Daily • Nov. 28, 2025

She weaned him off clozapine entirely in 2018 and Cauchi also stopped taking medication to treat his obsessive-compulsive disorder the year after, she said.

From BBC • May 30, 2025

The “Fast Car” singer says that in addition to anxiety, he has a “particularly wicked” version of obsessive-compulsive disorder.

From Los Angeles Times • Mar. 11, 2025

Dexter also had obsessive-compulsive disorder, which Andrea explained often accompanied Tourette’s.

From "Insignificant Events in the Life of a Cactus" by Dusti Bowling

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