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concussion

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Train for a Clear Mind
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Signs Of A Concussion
What is a Concussion? Learn the Causes, Symptoms & Treatment.
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Cuncussion
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con⋅cus⋅sion

  [kuhn-kuhsh-uhn]
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–noun
1. Pathology. injury to the brain or spinal cord due to jarring from a blow, fall, or the like.
2. shock caused by the impact of a collision, blow, etc.
3. the act of violently shaking or jarring.
Origin:
1350–1400; ME < L concussiōn- (s. of concussiō) a shaking. See concuss, -ion

Related forms:
con⋅cus⋅sion⋅al, con⋅cus⋅sant  [kuhn-kuhs-uhnt] , adjective
con⋅cus⋅sive, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To concussion
Train for a Clear Mind
EEG Neurofeedback & Psychotherapy Thomas M. Brod MD, DFAPA
tbrod.bol.ucla.edu/
Signs Of A Concussion
What is a Concussion? Learn the Causes, Symptoms & Treatment.
www.Lifescript.com
con·cus·sion   (kən-kŭsh'ən)   
n.  

  1. A violent jarring; a shock. See Synonyms at collision.

  2. An injury to an organ, especially the brain, produced by a violent blow and followed by a temporary or prolonged loss of function.


[Middle English concussioun, bruise, contusion, from Latin concussiō, concussiōn-, concussion, from concussus, past participle of concutere, to strike together; see concuss.]
con·cus'sive (-kŭs'ĭv) adj., con·cus'sive·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

concussion 
1490, from L. concussionem (nom. concussio), pp. of concutere "shake violently," from com- "together" + quatere "to shake." Modern sense of "brain injury" is 1541.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: con·cus·sion
Pronunciation: k&n-'k&sh-&n
Function: noun
1 : a hard blow or collision
2 : acondition resulting from the stunning, damaging, or shattering effects of a hard blow; especially : a jarring injury of the brain resulting in disturbance of cerebral function andsometimes marked by permanent damage —con·cus·sive /-'k&s-iv/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

concussion con·cus·sion (kən-kŭsh'ən)
n.

  1. A violent shaking or jarring.

  2. An injury to a soft structure, especially the brain, produced by a violent blow and followed by a temporary or prolonged loss of function.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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