Definitions of registered:

  • adjective:   listed or recorded officially
    Example: "Record is made of `registered mail' at each point on its route to assure safe delivery"
  • adjective:   (of animals) officially recorded with or certified by a recognized breed association; especially in a stud book
    Example: "A registered Percheron"
  • adjective:   (of a boat or vessel) furnished with necessary official documents specifying ownership etc