ice sheetEnglishMerriam-Webster Dictionarycription: '> ˌsər-kəm-ˈpō-lər \ continually visible above the horizonsurrounding or found in the vicinity of a terrestrial pole Definition 1 : continually visible above the horizon //a circumpolar star2 : surrounding or foucription: '> ˌsər-kəm-ˈpō-lər \ continually visible above the horizonsurrounding or found in the vicinity of a terrestrial pole Definition 1 : continually visible above the horizon //a circumpolar star2 : surrounding or fou