单词	traumatic brain injury
释义	traumatic brain injury noun : 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) Traumatic brain injury occurs when the shock from an explosion damages neurological fibers. Soldiers may survive a blast with scarcely a cut, only to find over time that they suffer coordination and memory loss, dizziness, insomnia. Nancy Gibbs 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. broadly : acquired brain injury —abbreviation TBI Word History First Known Use 1931, in the meaning defined above Medical Definition traumatic brain injury noun : an acquired brain injury caused by external force (as a blow to the head sustained in a motor vehicle accident or fall or shrapnel or a bullet entering through the skull) 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 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 broadly : acquired brain injury —abbreviation TBI
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