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CONCUSSION, civ. law. The unlawful forcing of another by threats of violence to give something of value. It differs from robbery in this, that in robbery the thing is taken by force, while in concussion it is obtained by threatened violence. Hein. Lec. El, Sec. 1071

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Although the initial prognosis of brain concussion is reassuring, significant short and long term complications may occur (15-20).
[5] Another study conducted in India, noticed that the head was the commonest site to be injured and Subdural Haemorrhage was the commonest haemorrhage in RTAJ9] Concussion of brain tissue was highest among all types of brain tissue injury (Brain concussion 44.8% and 14.9% brain laceration), but it is contradicted by another study.
A statement by his Ferrari team said: "It emerged he had suffered a cut on his forehead, bone damage to his skull and a brain concussion."
"If I didn't have a helmet on, I might have gotten a brain concussion or broke my skull.
I experienced pain, limited mobility, unpleasant brain concussion symptoms, post-traumatic stress symptoms with nightmares, and high anxiety associated with vehicular traffic.
He ruled Mr Millar had a mild brain concussion without demonstrable damage and was clinically depressed.
I suffered a double brain concussion, and my brain swelled so badly the doctors thought they would have to drill holes in my skull to relieve the pressure.
This may have resulted from respiratory compromise (especially in high-level quadriplegia) or a brain concussion. Such concussions often occur from a violent shaking of the brain during a whiplash injury or direct impact with a solid object.
Louis police officer Robert Stanze, when they queued up on the stoop of the home of the family of the suspected murderer to hear his mother report that police, sheriff's deputies and others had beaten her son, inflicting a "brain concussion, crushed jaw and broken cheekbone," though the hospital reported no such injuries.