impleader

/ɪmˈpliːdər/
noun
  1. A legal procedure where a defendant brings a third party into a lawsuit, claiming that party is responsible for part or all of the plaintiff's claim.
    • The judge granted the defendant's motion for impleader against the subcontractor.
    • The attorney filed an impleader to include the insurance company in the case.
    • Impleader allows a party to shift liability to someone else who may be at fault.