Climatic zone and Polar zone

Climatic zone noun - Any of the geographical zones loosely divided according to prevailing climate and latitude.

Polar zone and climatic zone are semantically related. In some cases you can replace phrase "Polar zone" with "Climatic zone", this phrases are similar.

Polar zone noun - The part of the Earth's surface forming a cap over a pole; characterized by frigid climate.

Climatic zone and polar zone are semantically related. You can use "Climatic zone" instead a noun phrase "Polar zone".