| polar |
having a pair of equal and opposite charges diametric: 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" 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" of or existing at or near a geographical pole or within the Arctic or Antarctic Circles; "polar regions" arctic: extremely cold; "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather" pivotal: 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"
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| polythene |
polyethylene: a lightweight thermoplastic; used especially in packaging and insulation
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| polyandry |
having more than one husband at a time
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| polyarteritis nodosa |
periarteritis nodosa: a progressive disease of connective tissue that is characterized by nodules along arteries; nodules may block the artery and result in inadequate circulation to the particular area
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| polyunsaturated fat |
a class of fats having long carbon chains with many double bonds unsaturated with hydrogen atoms; used in some margarines; supposedly associated with low blood cholesterol
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