redressor
/ˈrɛdrɛsər/Definitions
1. noun
A person or thing that redresses; a person or thing that adjusts, rectifies, or sets right a wrong or injustice
“The court appointed a redressor to investigate the claims of the victims.”
2. noun
A device or machine that adjusts or rectifies something, especially in a mechanical system
“The engine required a new redressor to improve its performance.”