contrecoup

noun
con·​tre·​coup | \ ˈkōn-trə-ˌkü How to pronounce contrecoup (audio) , ˈkän- How to pronounce contrecoup (audio) \

Medical Definition of contrecoup

: injury (as when the brain strikes the skull) occurring on the side of an organ opposite to the side on which a blow or impact is received — compare coup