The term "polar regions" refers to two specific areas at the top and bottom of the Earth, which are characterized by their extreme cold temperatures. These regions are located around the North Pole and South Pole, respectively. The Arctic region is known as the polar region in the northern hemisphere while the Antarctica region is considered as the polar region in the southern hemisphere. Both of these areas have unique ecosystems, wildlife, and geographical features that are adapted to survive in such harsh conditions. The term "polar regions" can also refer to any area with extreme cold temperatures or weather patterns.