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.
I've played in situations myself where players have been concussed and they've been asked to leave the field holding their shoulder to make sure that they don't suffer the three weeks out that is compulsory after suffering from concussion.
Though imaging modalities such as PET and SPECT scanning, as well as functional MRI, have increasingly been able to detect abnormalities in concussed brains, the role for these experimental techniques in assessment of either severity or recovery of concussion has not yet been established.
SB 1521, which was signed into law by the Arizona Governor Jan Brewer in August, mandates evaluation and clearance of concussed athletes by trained health care providers.
After matching them to control subjects of the same age and sport who did not experience a head injury, the study showed the King-Devick test outperformed the other two tests in distinguishing a concussed athlete versus an uninjured control subject with 92 percent accuracy (compared to 87 percent for Tandem Gait and 68 percent for SAC test).
IRELAND'S leading brain injury specialists have expressed serious concern that Sean Cavanagh played for Tyrone while concussed last weekend.
Davidson, left, was concussed and required stitches millimetres from his eye after being accidently clipped by Nicky Law's stud in the 1-0 loss at Ibrox.
The former Stockton star saw a specialist this week after being concussed for the second time in three games during Leicester Tigers' 45-0 drubbing at Bath 10 days ago.
He was concussed but conscious when match officials called an ambulance as a precaution while the game continued.
I'm hoping Calvin is still a little bit concussed and I can convince him it is the FA Cup again on Saturday and he might score again.
SPREAD punters looking to sell points in tonight's NFL clash between San Francisco and Chicago have to go as low as 36 with the defensive powerhouses meeting a week after both their starting quarterbacks were concussed, writes Phil Agius.
Dr Shorrock believed she had fallen over in the bath, banged her head and became concussed, before dying of scalding injuries.