con·cus·sion | \kən-ˈkə-shən \

Definition of concussion 

1a : 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.

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Other Words from concussion

concussive \kən-ˈkə-siv \ 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

Cordoba has 17 strikeouts against zero walks in 36 at-bats since returning from his concussion. Jeff Sanders,, "Josh Naylor homers in Texas League All-Star Game," 27 June 2018 There has been little room for Clint Frazier, the fifth overall pick of the 2013 draft, who was red-hot at Class AAA Scranton/Wilkes-Barre after recovering from a concussion sustained in spring training. New York Times, "Good News: Gardner Returns. Bad News: Yankees Still Fall to Rays.," 22 June 2018 Captain and centerback Jonathan Spector, who is recovering from a concussion, played 45 minutes in Orlando City’s win over Miami United, but was out for Saturday’s match against the Whitecaps. Jordan Culver, Pro Soccer USA, "Orlando City players making their way back from injuries," 12 June 2018 The State Department has set up a task force that will direct a multi-agency response to mysterious health incidents that have caused symptoms ranging from concussions to hearing loss in U.S. diplomats who were stationed in Cuba and China. Mimi Whitefield, miamiherald, "U.S. sets up task force to investigate diplomatic health incidents in Cuba and China," 5 June 2018 Kevin Love returned from a concussion to provide a big boost for Cleveland with 21 points and 13 rebounds. Janie Mccauley,, "Warriors Withstand James' 51 Points To Win NBA Finals Game 1," 1 June 2018 Florschutz returned from a concussion to strike out seven in a no-hitter against Kennett on April 6. Mike Owens,, "Hot bats have Coatesville softball off to hot start," 20 Apr. 2018 Brown, who recently returned from a concussion, has made huge strides in his second season. Aj Neuharth-keusch, USA TODAY, "With Kyrie Irving out for season, Celtics' playoff fortunes hinge on backup Terry Rozier," 5 Apr. 2018 It details injuries suffered by at least ten other people, ranging from concussions to multiple broken toes. Marilia Brocchetto, CNN, "Water park executives charged in 10-year-old's death," 27 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'concussion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of concussion

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

History and Etymology for concussion

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

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Last Updated

10 Oct 2018

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Time Traveler for concussion

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

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More Definitions for concussion



English Language Learners Definition of concussion

: an injury to the brain that is caused by something hitting the head very hard ( US ) ( Brit )


con·cus·sion | \kən-ˈkə-shən \

Kids Definition of concussion

: injury to the brain caused by a hard hit on the head


con·cus·sion | \kən-ˈkəsh-ən \

Medical Definition of concussion 

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

Other Words from concussion

concussive \-ˈkəs-iv \ adjective

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