noun
the part of the Earth's surface forming a cap over a pole; characterized by frigid climate
• Syn: ↑Frigid Zone, ↑polar region
• Hypernyms: ↑climatic zone
• Instance Hyponyms: ↑Antarctic, ↑Antarctic Zone, ↑South Frigid Zone, ↑Arctic, ↑Arctic Zone, ↑North Frigid Zone
Useful english dictionary. 2012.