Polar

1. (geography) Of, relating to, measured from, or referred to a geographic pole(the North Pole or South Pole).
2. (space sciences) Of an orbit that passes over, or near, one of these poles.
3. (chemistry) Having a dipole; ionic.
4. (mathematics) Of a coordinate system, specifying the location of a point in a plane by using a radius and an angle.
5. (linguistics, of a question) Having but twopossible answers, yes and no.