concussion

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concussion

a jarring of the brain, caused by a blow or a fall, usually resulting in loss of consciousness

concussion

[kən′kəsh·ən]
(engineering)
Shock waves in the air caused by an explosion underground or at the surface or by a heavy blow directly to the ground surface during excavation, quarrying, or blasting operations.
(medicine)
A state of shock following traumatic injury, especially cerebral trauma, in which there is temporary functional impairment without physical evidence of damage to impaired tissues.
References in periodicals archive ?
Wang and colleagues studied 18 concussed players and 19 non-concussed players.
Furthermore, 31% indicated that they had been concussed on two or more occasions.
Nico is concussed, it didn't look anything serious but we didn't want to take a risk.
This strategy, however, is often extended beyond the acute and sub-acute phases, such that concussed athletes are essentially sequestered--with no texting, computer use, video games, school work exercise and sport activity--particularly if symptoms return or worsen.
But clerk of the course Fiona Needham said: "She's quite badly concussed and has dislocated her shoulder, but she is stable.
I suspect it could be a smokescreen for the fact that Ronan O'Gara was actually concussed, and he'd therefore miss the final match of the Championship.
Headache, seen in up to 85% of concussed athletes, is the most common symptom.
We're going to have to go back to the drawing board as to how to be able to discern whether a child has been concussed.
The light is so blinding and the terrain so dramatic that the visitors amble about as if concussed.
Concussed Cinders and her shell-shocked flyer meet in their dreams in a haunted ballroom, where she is transformed into a Princess Di siren.
Charles cheerleading school is being sued by a middle-school student who argues instructors forced her to resume practicing after being concussed when a teammate fell from a pyramid formation.
England full-back Danielle Waterman will miss the final after being concussed in the semi-final win over France.