polar zone

English Thesaurus

1. the part of the Earth's surface forming a cap over a pole; characterized by frigid climate (noun.location)

hypernym	:	climatic zone,
definition	:	any of the geographical zones loosely divided according to prevailing climate and latitude (noun.location)

instance hyponym	:	antarctic, antarctic zone, south frigid zone,
definition	:	the region around the south pole: Antarctica and surrounding waters (noun.location)

instance hyponym	:	arctic, arctic zone, north frigid zone,
definition	:	the regions to the north of the Arctic Circle centered on the North Pole (noun.location)