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concussion
concussion definition
con·cus·sion (kən kus̸h′ən)
noun
- a violent shaking; agitation; shock, as from impact
- Med. a condition of impaired functioning of some organ, esp. the brain, as a result of a violent blow or impact
Etymology: ME concussioun < L concussio < pp. of concutere, shake violently < com-, together + quatere, to shake: see quash
Related Forms:
- concussive con·cus′·sive (-kus′iv) adjective
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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