From Longman Dictionary of Contemporary Englishpolar bearˌpolar ˈbear / $ ˈ.../ noun [countable] 
HBAa large white bear that lives near the North Pole
HBAa large white bear that lives near the North PoleExamples from the Corpus
polar bear• It handled the snow like a polar bear.• Even the villain, Perry, a polar bear poacher out to capture Cubby, is a familiar, unsurprising manifestation.• A polar bear has stolen my sleeping bag..• On the same day another polar bear was captured and removed from the Prudhoe Bay field.• Everyone went hungry that day, because the little polar bear scoffed every pack lunch we had. 