The term 'WINTER OLYMPICS POWERHOUSE: ABBR.' is an abbreviation for two countries, Norway (NOR) and Sweden (SWE). Both countries have a long history of success in the Winter Olympics, with Norway having won more medals than any other country in the history of the games. Norway has won a total of 329 medals, while Sweden has won a total of 188 medals. Both countries have also produced some of the greatest winter athletes of all time, such as Norwegian cross-country skier Marit Bjørgen and Swedish alpine skier Ingemar Stenmark.