- 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 of polyunsaturated
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for polyunsaturated
In fact, the correction of the Cambridge study had to do with polyunsaturated fats—not saturated fats.The AHA’s Absurd Saturated Fat Obsession
Dr. Barbara H. Roberts
June 3, 2014
The recording was sprinkled with repeated instances of unusual key words, such as “polyunsaturated” and “knuckleduster.”Will Work for 25 Cents an Hour!
Thomas E. Weber
June 22, 2011
- 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 varnishesSee also monounsaturated
Word Origin and History for polyunsaturated
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to long-chain carbon compounds, especially fatty acids, having two or more double bonds per molecule. Foods containing polyunsaturated fatty acids help reduce the level of LDL cholesterol in the blood.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.