concussion Hear it!

concussion definition

con·cus·sion (kən kus̸h′ən)

noun

  1. a violent shaking; agitation; shock, as from impact
  2. 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

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