Meaning of arachidonic acid

ar'a•chi•don'ic ac'id

Pronunciation: (ar'u-ki-don'ik, ar"-), [key]
— Biochem. Biochem.
  1. an essential fatty acid, CHO, found in the lipids of most tissues, that is a precursor in the synthesis of prostaglandins, prostacyclins, and related effectors.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.