Obsessive-compulsive disorder (OCD) is a chronic anxiety disorder most commonly characterized by obsessive, distressing, intrusive thoughts and related compulsions (tasks or which ...

Not-for-profit organization of people with OCD and related disorders, their families, and mental health professionals, providing support, assistance, and education to the public ...

adjective . 1. being, pertaining to, or resembling an obsession: an obsessive fear of illness. 2. causing an obsession. 3. excessive, esp. extremely so.

Obsessive-Compulsive Disorder, OCD, is an anxiety disorder and is characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions).

ob·ses·sive   (b-s s v, b-) adj. 1. Of, relating to, characteristic of, or causing an obsession: obsessive gambling. 2. Excessive in degree or nature: an obsessive need to win.