(kon-kŭ'shŭn), 1. A violent shaking or jarring. 2. An injury of a soft structure, as the brain, resulting from a blow or violent shaking. Synonym(s): commotio [L. concussio, fr. con- cutio, pp. -cussus, to shake violently]
commotio
A concussion; a violent shaking or “rattling” of the brain, or shock secondary thereto.LegalSeeConcussion