(pros'tă-nō'ik as'id), The 20-carbon acid that is the skeleton of the prostaglandins, with various hydroxyl and keto substitutions at positions 9, 11, and 15, and double bonds in the long aliphatic chains.
pros·ta·no·ic ac·id
(pros'tă-nō'ik as'id) The 20-carbon acid that is the skeleton of the prostaglandins.