Simple Definition of concussion
: an injury to the brain that is caused by something hitting the head very hard ( US ) ( Brit )
She suffered a severe concussion after falling on the ice.
He went to hospital with concussion.
Origin and Etymology of concussion
Middle English concussioun, from Latin concussion-, concussio, from concutere to shake violently, from com- + quatere to shake
First Known Use: 14th century
Synonym Discussion of concussion
CONCUSSION Defined for Kids
Definition of concussion for Students
: injury to the brain caused by a hard hit on the head
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