Polar: adj. and nf (word from Low Latin polaris: pole).
The word “polar” has several meanings:
1. Relating to celestial, terrestrial poles; located near a pole.
The North Star (or female name: the Polar), which indicates the direction of the north.
Regions, polar areas, located near the pole (Arctic or Antarctic).
Polar circle: small circle of the terrestrial sphere (parallel) with an angular distance from the poles equal to the obliquity of the ecliptic (23° 27′).
Common sense...
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