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polar po·lar (pō'lər)adj.
Of or relating to a pole.
Having poles. Used of certain nerve cells having one or more processes.
Relating to a pole, such as the pole of a magnet or one of the electrodes of an electrolytic cell.
Relating to the North Pole or the South Pole of Earth, or analogous regions of another planet.
Relating to a molecule or substance that has polar bonds.