polar

Of or relating to a pole.

Measured from or referred to a pole.

Relating to, connected with, or located near the North Pole or South Pole.

Passing over a planet’s north and south poles.

Traveling in an orbit that passes over a planet’s north and south poles.

Serving as a guide, as a polestar or a pole of the earth.

Occupying or characterized by opposite extremes.

Central or pivotal.