noun
( especially US ) a region that used to have a lot of industry, but that has now decreased in importance and wealth, especially parts of the northern US where there were many factories that have now closed
noun
( especially US ) a region that used to have a lot of industry, but that has now decreased in importance and wealth, especially parts of the northern US where there were many factories that have now closed
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005