concussion

noun

con·​cus·​sion kən-ˈkə-shən How to pronounce concussion (audio)
1
a
: a stunning, damaging, or shattering effect from a hard blow
especially : a jarring injury of the brain resulting in disturbance of cerebral function
The football player suffered a concussion.
b
: a hard blow or collision
2
: agitation, shaking
The concussion from the explosion was felt 12 miles away.
concussive adjective
Choose the Right Synonym for concussion

impact, collision, shock, concussion mean a forceful, even violent contact between two or more things.

impact may be used to imply contact between two things, at least one of which is impelled toward the other.

the glass shattered on impact with the floor

collision implies the coming together of two or more things with such force that both or all are damaged or their progress is severely impeded.

the collision damaged the vehicle

shock often denotes the effect produced by a collision and carries the suggestion of something that strikes or hits with force.

the shock of falling rocks

concussion when not in technical use, often suggests the shattering, disrupting, or weakening effects of a collision, explosion, or blow.

bystanders felt the concussion of the blast

Examples of concussion in a Sentence

She suffered a severe concussion after falling on the ice. He went to hospital with concussion.
Recent Examples on the Web Medical evaluations could play a role on where and when Jackson Powers-Johnson is drafted considering he’s suffered multiple concussions. 8. Eddie Brown, San Diego Union-Tribune, 26 Apr. 2024 Reed sustained a black eye, a fractured nose and a concussion from being knocked unconscious after his head hit asphalt. Alexandra Duggan, Idaho Statesman, 25 Apr. 2024 Brain scans later showed tissue damage and volume loss similar to those found in persistent concussion syndrome. Nik Popli, TIME, 1 Apr. 2024 Thankfully, Lindor passed his concussion test and had clear X-ray scans, but did crack a tooth from the pitch. Jacqueline Weiss, Peoplemag, 25 Mar. 2024 Studies by the University of Pennsylvania in 2018 and 2019 suggested that people affected by the syndrome had possible brain injuries that were different from typical concussion injuries or other traumatic brain injuries. Julian E. Barnes, New York Times, 18 Mar. 2024 Other injuries sustained in the crash include a cervical and two thoracic spine vertebral body fractures for Team Emirates rider Jay Vine and a concussion and fractured sternum for EF Pro Cycling’s Sean Quinn. Matias Grez, CNN, 5 Apr. 2024 The man is dealing with the symptoms of a concussion, like brain fog and sensitivity to light and sound, the attorney said. James Hartley, Fort Worth Star-Telegram, 3 Apr. 2024 Those sports led to many injuries: concussions, hamstring strains, rotator cuff issues. Alexis Soloski, New York Times, 2 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'concussion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English concussioun, from Latin concussion-, concussio, from concutere to shake violently, from com- + quatere to shake

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of concussion was in the 14th century

Dictionary Entries Near concussion

Cite this Entry

“Concussion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/concussion. Accessed 30 Apr. 2024.

Kids Definition

concussion

noun
con·​cus·​sion kən-ˈkəsh-ən How to pronounce concussion (audio)
1
: a violent uneven motion
2
: a hard blow or collision
3
: bodily injury especially of the brain resulting from a sudden sharp jar (as from a blow)
concussive adjective

Medical Definition

concussion

noun
con·​cus·​sion kən-ˈkəsh-ən How to pronounce concussion (audio)
1
: a hard blow or collision
2
: a condition 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 and sometimes marked by permanent damage
concussive adjective

More from Merriam-Webster on concussion

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