concussation
/kɒnˈkʌsɪˌeɪʃən/Definitions
1. noun
The act of concussing or a concussive injury.
“The athlete suffered a serious concussation during the game and had to be taken off the field.”
2. noun
A state of dizziness or confusion caused by a blow to the head.
“After the car accident, she experienced a period of concussation and was unable to drive.”