concussion

[ kuh n-kuhsh-uh n ]
/ kənˈkʌʃ ən /

noun

Pathology. injury to the brain or spinal cord due to jarring from a blow, fall, or the like.
shock caused by the impact of a collision, blow, etc.
the act of violently shaking or jarring.

Origin of concussion

1350–1400; Middle English < Latin concussiōn- (stem of concussiō) a shaking. See concuss, -ion

Related forms

con·cus·sion·al, con·cus·sant [kuh n-kuhs-uh nt] /kənˈkʌs ənt/, adjectivecon·cus·sive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for concussion

British Dictionary definitions for concussion

concussion

/ (kənˈkʌʃən) /

noun

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

Derived Forms

concussive, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for concussion

concussion

[ kən-kŭshən ]

n.

A violent shaking or jarring.
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.

Science definitions for concussion

concussion

[ kən-kŭshən ]

An injury to a soft structure, especially the brain, produced by a violent blow or impact and followed by a temporary, sometimes prolonged, loss of function. A concussion of the brain results in transient loss of consciousness or memory.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.