DuckCorp Dico

Found one definition

1.                 From fr.wiktionary.org:
                   
   
   
                   
                     
   [conçussions]
   
   ** [fr]
   
   *** [nom]
   [kɔ̃.ky.sjɔ̃] CONCUSSIONS [kɔ̃.ky.sjɔ̃] [f]
   
    1. _Pluriel de_  concussion .
   ** [en]
   
   *** [nom]
   [sing=concussion] CONCUSSIONS [en]
   
    1. _Pluriel de_  concussion .