ureteroureterostomy /jʊˌriːtəroʊjʊˌriːtəˈrɒstəmi/ noun1 •A surgical procedure in which the two ureters are connected to each other. It’s done when there’s a need to bypass a damaged, obstructed, or diseased section of the ureter, or when a part of the ureter has been removed for treatment. formsureteroureterostomies