Adjective
1. having a pair of equal and opposite charges
2. characterized by opposite extremes; completely opposed;
"in diametric contradiction to his claims""diametrical (or opposite) points of view""opposite meanings""extreme and indefensible polar positions"3. located at or near or coming from the earth's poles;
"polar diameter""polar zone""a polar air mass""Antarctica is the only polar continent"4. of or existing at or near a geographical pole or within the Arctic or Antarctic Circles;
"polar regions"5. extremely cold;
"an arctic climate""a frigid day""gelid waters of the North Atlantic""glacial winds""icy hands""polar weather"6. being of crucial importance;
"a pivotal event""Its pivotal location has also exposed it to periodic invasions"- Henry Kissinger"the polar events of this study""a polar principal"