traumatic Definition

psychologically or emotionally stressful in a way that can lead to serious mental and emotional problems; broadly : causing distress or anxiety

relating to, being, or caused by a sudden, severe, often life-threatening injury to the body; also : involving or causing tissue damage or physical stress

an acquired brain injury caused by external force (such as a blow to the head sustained in a motor vehicle accident or fall or shrapnel or a bullet entering through the skull; broadly : acquired brain injury—abbreviation TBI

a progressive neurological disease that is found especially in athletes (such as boxers, wrestlers, or football players) who have experienced repetitive, mild injury to the brain and that is characterized by short-term memory loss, concentration deficits, confusion, depression, behavioral and personality changes (such as an increase in irritability, impulsivity, or aggression), speech and gait abnormalities, parkinsonism, and dementia —abbreviation CTE—called also dementia pugilistica, punch-drunk syndrome

occurring after or as a result of trauma

a psychological reaction occurring after experiencing a highly stressing event (such as wartime combat, physical violence, or a natural disaster) that is usually characterized by depression, anxiety, flashbacks, recurrent nightmares, and avoidance of reminders of the event —abbreviation PTSD—called also post-traumatic stress syndrome