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linoleic acid

American  
Also linolic acid

noun

Chemistry.
  1. an unsaturated fatty acid, C 18 H 32 O 2 , occurring as a glyceride in drying oils, as in linseed oil.


linoleic acid British  
/ ˌlɪnəʊˈliːɪk /

noun

  1. a colourless oily essential fatty acid found in many natural oils, such as linseed: used in the manufacture of soaps, emulsifiers, and driers. Formula: C 18 H 32 O 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

linoleic acid Scientific  
/ lĭn′ə-lēĭk /
  1. An unsaturated fatty acid that has two double bonds and is a nutrient essential for prostaglandin production in the human body. It is an important component of many vegetable oils, such as linseed, soybean, peanut, corn, and safflower oil, and is also found in meat and dairy products. Chemical formula: C 18 H 32 O 2 .


Etymology

Origin of linoleic acid

First recorded in 1855–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The altered protein also changes how the body handles linoleic acid, one of the primary components of soybean oil.

From Science Daily Nov. 30, 2025

My scared-straight moment: A 2022 study at Wake Forest University showed that Alzheimer’s patients had linoleic acid blood levels that were 56 percent higher than people without cognitive impairment.

From New York Times Apr. 28, 2024

However, other research doesn't support the idea reducing dietary linoleic acid affects the amount of arachidonic acid in your body.

From Salon Feb. 21, 2024

One criticism of seed oils is that they’re too high in omega-6 fatty acids — especially linoleic acid — and this can cause inflammation in the body.

From Seattle Times Mar. 6, 2023

The only reaction based upon the chemical constitution of fat is produced by treatment of oleic or linoleic acid with nitrous acid, which therefore is of some value in the examination of drying oils.

From Scientific American Supplement, No. 470, January 3, 1885 by Various

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