medical Definition of traumatic brain injury
- A soldier—or a civilian—can survive the blast without a single penetrating wound and still receive the worst diagnosis: traumatic brain injury, or TBI, the signature injury of the Iraq War.
- —Michael Mason, Discover, 24 Feb. 2007
- An unprotected fall, especially if the player is unconscious or his opponent lands on top of him, can result in severe traumatic brain injury.
- —Michael J. Stuart et al., USA Today, 31 Oct. 2013