polyunsaturated

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polyunsaturated

[pol-ee-uhn-sach-uh-rey-tid]
adjective Nutrition.
of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.

Origin:
1930–35; poly- + unsaturated

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World English Dictionary
polyunsaturated (ˌpɒlɪʌnˈsætʃəˌreɪtɪd)
 
adj
See also monounsaturated of or relating to a class of animal and vegetable fats, the molecules of which consist of long carbon chains with many double bonds. Polyunsaturated compounds are less likely to be converted into cholesterol in the body. They are widely used in margarines and in the manufacture of paints and varnishes

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Etymonline
Word Origin & History

polyunsaturated
1932, from poly- (see poly-) + unsaturated.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

polyunsaturated pol·y·un·sat·u·rat·ed (pŏl'ē-ŭn-sāch'ə-rā'tĭd)
adj.
Of or relating to long-chain carbon compounds, especially fats, having many unsaturated bonds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
polyunsaturated   (pŏl'ē-ŭn-sāch'ə-rā'tĭd)  Pronunciation Key 
Relating to an organic compound, especially a fat, in which more than one pair of carbon atoms are joined by double or triple bonds. See more at unsaturated.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
That's because reptiles and fish are particularly rich in long-chain polyunsaturated fatty acids.
He fed them diets that were either high in saturated fat, high in monounsaturated fat, or high in polyunsaturated fat.
Those fats are higher in monounsaturated fat and lower in polyunsaturated fat than their feathered white-meat friends.
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