polar
adjective
1. having a pair of equal and opposite charges
Similar word(s): charged
2. characterized by opposite extremes; completely opposed
- extreme and indefensible polar positions
Similar word(s): different, diametric, diametrical, opposite
3. located at or near or coming from the earth's poles
- polar diameter
- polar zone
- a polar air mass
4. of or existing at or near a geographical pole or within the Arctic or Antarctic Circles
- polar regions
Similar word(s): circumpolar, arctic, antarctic
5. extremely cold
- polar weather
Similar word(s): cold, arctic, frigid, gelid, glacial, icy
6. being of crucial importance
- the polar events of this study
- a polar principal