OCD

abbreviation or noun

ˌō-ˌsē-'dē 

: a chronic disorder characterized by recurrent obsessions or compulsions or both that cause significant distress, are time-consuming, and interfere with normal daily functioning : obsessive-compulsive disorder

The subjects of the experiment were 18 people with obsessive-compulsive disorder (OCD)—unwanted and pointless but irresistible intrusive thoughts (e.g., fear of contamination by germs) and repetitive actions (e.g., handwashing or change-counting).

—The Harvard Medical School Mental Health Letter

OCD is a mental health condition that "involves both obsessions and compulsions that take up a lot of time and get in the way of important activities, such as school, family life, extracurricular activities, developing friendships, and self-care," according to the International OCD Foundation.

—Sarah D. Collins

Examples of OCD in a Sentence

Recent Examples on the Web

With schools closed and routines upended, Bobby's increasingly intense rituals— driven by his OCD—engulfed the family. —Melissa Fleur Afshar, MSNBC Newsweek, 25 May 2025

SSRIs are approved by the FDA to treat a range of conditions such as anxiety, depression, bulimia nervosa, obsessive-compulsive disorder (OCD) and post-traumatic stress disorder (PTSD), and are used off-label to treat several others. —Adrianna Rodriguez, USA Today, 22 May 2025

Their research may help guide better ways to treat OCD. —Cindy Krischer Goodman, Sun Sentinel, 16 May 2025

The study marks the most comprehensive understanding of OCD yet, comparing DNA from 53,660 people with OCD to over 2 million people without it. —Mandy Taheri, MSNBC Newsweek, 14 May 2025

Medical Definition

OCD

abbreviation or noun

ˌō-ˌsē-ˈdē 

: a chronic disorder characterized by recurrent obsessions or compulsions or both that cause significant distress, are time-consuming, and interfere with normal daily functioning : obsessive-compulsive disorder

Childhood and adolescent obsessive-compulsive disorders are sometimes seen in dermatology practice. When present, OCD is most frequently manifested in younger patients as trichotillomania …

—J. Y. Koo and L. L. Smith, Pediatric Dermatology

… drugs such as Prozac help relieve the symptoms of OCD, but 90 percent of medicated patients relapse when the drugs are withdrawn. More effective is behavioral therapy, which has a cure rate of up to 80 percent.

—Josie Glausiusz, Discover