From Longman Dictionary of Contemporary EnglishThatcheriteThatch‧er‧ite /ˈθætʃəraɪt/ noun someone who agrees with the ideas and policies of Margaret thatcher, the former prime minister of the UK, especially her right-wing ideas about economic management Opposition to a European currency is still strong among the Thatcherites in the party. —Thatcherite adjective a Thatcherite attitude to the Welfare State