What does concussion mean?

n. A brain injury that can be caused by a blow to the head, resulting in confusion, memory loss, and sometimes unconsciousness.

concussion

🇺🇸 /kənˈkʌʃn/ 🇬🇧 /kənˈkʌʃn/

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noun

A brain injury that can be caused by a blow to the head, resulting in confusion, memory loss, and sometimes unconsciousness.

After the accident, he experienced a concussion and needed to rest.

A brain injury that can be caused by a blow to the head, resulting in confusion, memory loss, and sometimes unconsciousness.

Plural concussions