post traumatic stress disorder

Short definition from Wiktionary

Noun

1. 1
   Alternative spelling of post-traumatic stress disorder.
2. 2
   A psychological condition that develops following some stressful situation or event, with symptoms such as sleep disturbance, recurrent dreams, flashbacks, hypervigilance, depression, dissociation, withdrawal or lack of concentration.
3. 3
   Alternative spelling of post-traumatic stress disorder.