[ar-uh-ki-don-ik, ar-] 
| 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. |
| ar·a·chi·don·ic acid (ār'ə-kĭ-dŏn'ĭk) n. An unsaturated fatty acid, C20H32O2, found in animal fats, that is essential in human nutrition and is a precursor in the biosynthesis of some prostaglandins. [From arachidic, of the groundnut, from New Latin Arachis, groundnut genus, from Greek arakis, arakid-, diminutive of arakos, a leguminous plant.] |
arachidonic acid ar·a·chi·don·ic acid (ār'ə-kĭ-dŏn'ĭk)
n.
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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