polar
英 ['pəʊlə]
美['polɚ]
	    - adj. 极地的;两极的;正好相反的
 - n. 极面;极线
 - n. (Polar)人名;(德、西)波拉尔
 
英英释意
- 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"