polar

1. Of or having a pole or polarity, as:
   1. not comparablegeographyOf, relating to, measured from, or referred to a geographic pole (the North Pole or South Pole); within the Arctic or Antarctic circles.

      After all, to go into outer space is not so much worse, if at all, than a polar expedition.

      1900 December – 1901 August, H[erbert] G[eorge] Wells, The First Men in the Moon, London: George Newnes, […], published 1901, →OCLC

   2. not comparableastronomyOf an orbit that passes over, or near, one of these poles.
   3. not comparablechemistryHaving a dipole; ionic.
   4. not comparablemathematicsOf a coordinate system, specifying the location of a point in a plane by using a radius and an angle.
   5. not comparablehuman sciencesHaving but two possible answers, yes and no.
   6. not comparableconceptual analysisOf or relating to a pole (extreme) on any spectrum or field, such as an ideologically pure dogmatic position as opposed to any syncretic integration or balancing of competing principles.

      polar viewpoints

plural polars

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