polar - Dictionary definition and pronunciation - Yahoo! Education
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po·lar  audio  (plr) KEY 

ADJECTIVE:
    1. Of or relating to a pole.
    2. Measured from or referred to a pole: polar distance; polar diameter.
  2. Relating to, connected with, or located near the North Pole or South Pole.
    1. Passing over a planet's north and south poles: a polar orbit.
    2. Traveling in an orbit that passes over a planet's north and south poles.
  4. Serving as a guide, as a polestar or a pole of the earth.
  5. Occupying or characterized by opposite extremes: "In creative territory [they] make a strange yet ineluctable couple, more complementary, even polar, than twin-like" (Josh Rubins).
  6. Central or pivotal.
    1. Chemistry Relating to or characterized by a dipole: a polar molecule.
    2. Ionizing when dissolved or fused: polar bonds or linkages.



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