polar

adjective1 of 2

concerning the areas near the North or South poles

• “The seal is an animal from the polar region.”Tatoeba
• “Polar bears can orient by day to the sun.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

The line joining the points of contact of tangents drawn to meet a curve from a point called the pole of the line.