polyunsaturated fatty acid

/P AA0 L IY0 AH0 N S AE1 CH ER0 EY0 T IH0 D F AE0 T IY0 AE0 S AH0 D/
noun
  1. 1

    (organic chemistry) A fatty acid, such as arachidonic acid, that contains two or more carbon-to-carbon double bonds