Any of a class of
hormone-like,
lipid-soluble regulatory
molecules constructed from
polyunsaturated fatty acids such as
arachidonate. These molecules participate in diverse body functions such as
smooth muscle contraction and
relaxation,
vasodilation, and
kidney regulation.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.