posttraumatic stress disorder

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A psychological disorder affecting individuals who have experienced or witnessed profoundly traumatic events, such as torture, murder, rape, or wartime combat, characterized by recurrent flashbacks of the traumatic event, nightmares, irritability, anxiety, fatigue, forgetfulness, and social withdrawal.

Wiktionary

1. n. Alternative form of post-traumatic stress disorder.

WordNet 3.0

1. n. an anxiety disorder associated with serious traumatic events and characterized by such symptoms as survivor guilt, reliving the trauma in dreams, numbness and lack of involvement with reality, or recurrent thoughts and images