
1) Accidental injury 2) Any violent blow 3) Athletic training 4) Injury
Found on
https://www.crosswordclues.com/clue/concussion

Concussion, from the Latin concutere (`to shake violently`) or concussus (`action of striking together`), is the most common type of traumatic brain injury. The terms mild brain injury, mild traumatic brain injury (MTBI), mild head injury (MHI), minor head trauma, and concussion may be used interchangeably, although the last is often treated a...
Found on
http://en.wikipedia.org/wiki/Concussion

A disruption, usually temporary, of neurological function resulting from a blow or violent shaking.
Found on
http://www.aans.org/Media/Glossary-of-Terminology

a temporary loss of brain function resulting from a relatively mild injury to the brain, not necessarily associated with unconsciousness. Those with ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/c/125

A state of disturbed consciousness following head injury, characterized by amnesia for events preceding and following the trauma. Permanentbrain damage is only found in cases of repeated concussion, as in boxers who develop the punch-drunk syndrome.
Found on
http://www.daviddarling.info/encyclopedia/C/concussion.html

The clinical manifestation of the diaschisis, oedema, and other sequelae of a traumatic head injury; a period of raised intracranial pressure due to same, which can itself threaten to do yet further damage.
Found on
http://www.encyclo.co.uk/local/20437

Jarring injury of the brain resulting in dysfunction. It can be graded as mild, moderate or severe depending on loss of consciousness, amnesia and loss of equilibrium.
Found on
http://www.encyclo.co.uk/local/20906

<neurology> A more serious form of head injury that is characterised by one or more of the following features: loss of consciousness, amnesia, seizure or a change in mentation. ... See: brain contusion. ... (05 Jan 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

(kәn-kush´әn) a violent jar or shock, or the condition that results from such an injury. concussion of the brain a traumatic brain injury following a blow to the head with alteration of consciousness, whether brief or prolonged; this may be followed by an episode of amnesia, v...
Found on
http://www.encyclo.co.uk/local/21001
Con·cus'sion noun [ Latin
concussio , from
concutere ,
concussum , to shake violenty;
con- +
quatere to shake. See
Cashier ,
Quash .]
1. A shaking or agitation; a shock; caused by the collision of two bodies. « It is believed that grea...
Found on
http://www.encyclo.co.uk/webster/C/130

An injury resulting from a blow or impact.
Found on
http://www.gadsbywicks.co.uk/uploaded/3822.pdf

Type: Term Pronunciation: kon-kŭ′shŭn Definitions: 1. A violent shaking or jarring. 2. An injury of a soft structure, as the brain, resulting from a blow or violent shaking. Synonyms: commotio
Found on
http://www.medilexicon.com/medicaldictionary.php?t=19643

Concussion: A traumatic injury to tissues of the body such as the brain as a result of a violent blow, shaking, or spinning. For information specifically about concussion of the brain, please also see Concussion of the brain.Common Misspellings: concusion
Found on
http://www.medterms.com/script/main/art.asp?articlekey=2813

A concussion is a violent jar or shock to the brain that causes an immediate change in the brain function, and can possibly include loss of consciousness. For a mild concussion, the signs and symptoms include temporary loss of consciousness; memory loss; and emotional instability. For a severe concussion, the signs and symptoms include prolonged un...
Found on
http://www.probertencyclopaedia.com/browse/EC.HTM

A violent blow to the head, usually resulting in the loss of consciousness.
Found on
http://www.thehorse.com/Glossary.xhtml?L=C

[
n] - injury to the brain caused by a blow 2. [n] - any violent blow
Found on
http://www.webdictionary.co.uk/definition.php?query=concussion

disturbance of electrical activity in the brain due to a blow to the head or neck, causing temporary loss of consciousness
Found on
https://www.encyclo.co.uk/local/20875
noun injury to the brain caused by a blow; usually resulting in loss of consciousness
Found on
https://www.encyclo.co.uk/local/20974

Temporary unconsciousness resulting from a blow to the head. It is often followed by amnesia for events immediately preceding the blow
Found on
https://www.encyclo.co.uk/local/21221

An injury to the brain which causes ‘shaking’ / ‘jarring’ of the brain.
Found on
https://www.firstaidforfree.com/first-aid-training-resources/first-aid-glos

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.
Found on
https://www.infoplease.com/dictionary/concussion
No exact match found.