Skip to main content

arachidonic acid

arachidonic acid A polyunsaturated fatty acid, CH3(CH2)3(CH2CH:CH)4(CH2)3COOH, that is essential for growth in mammals (see eicosanoid). It can be synthesized from linoleic acid. Arachidonic acid acts as a precursor to several biologically active compounds, including prostaglandins, and plays an important role in membrane production and fat metabolism. The release of arachidonic acid from membrane phospholipids, particularly diacylglycerol, is triggered by certain hormones. See essential fatty acids.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"arachidonic acid." A Dictionary of Biology. . Encyclopedia.com. 25 Apr. 2017 <http://www.encyclopedia.com>.

"arachidonic acid." A Dictionary of Biology. . Encyclopedia.com. (April 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid

"arachidonic acid." A Dictionary of Biology. . Retrieved April 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid

arachidonic acid

arachidonic acid A long chain polyunsaturated fatty acid (20 : 4 ω6). Not strictly an essential fatty acid, since it can be formed from linoleic acid, but three times more potent than linoleic acid in curing the signs of essential fatty acid deficiency. Found in animal tissues, especially fish, eggs, liver, and brain.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"arachidonic acid." A Dictionary of Food and Nutrition. . Encyclopedia.com. 25 Apr. 2017 <http://www.encyclopedia.com>.

"arachidonic acid." A Dictionary of Food and Nutrition. . Encyclopedia.com. (April 25, 2017). http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid

"arachidonic acid." A Dictionary of Food and Nutrition. . Retrieved April 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid

arachidonic acid

arachidonic acid (ă-rak-i-don-ik) n. see essential fatty acid.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"arachidonic acid." A Dictionary of Nursing. . Encyclopedia.com. 25 Apr. 2017 <http://www.encyclopedia.com>.

"arachidonic acid." A Dictionary of Nursing. . Encyclopedia.com. (April 25, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid

"arachidonic acid." A Dictionary of Nursing. . Retrieved April 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/arachidonic-acid