<p><strong>adjective</strong></p><ul><li>of or relating to the North or South Pole.</li><li>of or relating to the pole of any sphere, a magnet, an electric cell, etc.</li><li>opposite in character or action: The two have personalities that are polar.</li><li>capable of ionizing, as NaCl, HCl, or NaOH; electrolytic; heteropolar.</li><li>central; pivotal: the polar provision of the treaty.</li><li>analogous to the polestar as a guide; guiding: a polar precept.</li></ul>