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