To desegregate something such as a place, institution, or service means to officially stop keeping the people who use it in separate groups, especially groups that are defined by race.
例句
...efforts to desegregate sport...為廢除體育領域的種族隔離所作的努力The school system itself is not totally desegregated.教育體系本身并沒有完全廢除種族隔離。