roll ‧ back /ˈrəʊlbæk $ ˈroʊl-/ BrE AmE noun [uncountable and countable] especially American English
an occasion when a tax, price, law etc is reduced to a previous level or changed so that it is the way it used to be ⇨ roll back at ↑ roll 1
roll ‧ back /ˈrəʊlbæk $ ˈroʊl-/ BrE AmE noun [uncountable and countable] especially American English
an occasion when a tax, price, law etc is reduced to a previous level or changed so that it is the way it used to be ⇨ roll back at ↑ roll 1
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012