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arachidonic acid

[ar-uh-ki-don-ik, ar-]
noun Biochemistry.
  1. an essential fatty acid, C20H32O2, found in the lipids of most tissues, that is a precursor in the synthesis of prostaglandins, prostacyclins, and related effectors.
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Origin of arachidonic acid

First recorded in 1910–15; arachid(ic) + -onic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for arachidonic acid

arachidonic acid

noun
  1. a fatty acid occurring in animal cells: the metabolic precursor of several groups of biologically active substances, including prostaglandins
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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

arachidonic acid in Medicine

arachidonic acid

(ăr′ə-kĭ-dŏnĭk)
n.
  1. An unsaturated fatty acid found in animal fats that is essential in human nutrition and is a precursor in the biosynthesis of some prostaglandins.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.