Oxford Dictionary English the Antarctic Circle nounnoun BrE BrE//ænˌtɑːktɪk ˈsɜːkl// ; NAmE NAmE//ænˌtɑːrktɪk ˈsɜːrkl// [singular] Add to my wordlistjump to other results enlarge image the line of latitude 66° 33′ South compare Arctic CircleSee the Antarctic Circle in the Oxford Advanced American DictionaryCheck pronunciation: the Antarctic Circle oxfordlearnersdictionaries.com