any of a group of lipids that contain a phosphate ester as part of the structure and yield on hydrolysis phosphoric acid, an alcohol, fatty acid, and a nitrogenous base: found in all living cells
See phospholipid in American Heritage Dictionary 4
(fŏsˌfō-lĭpˈĭd)
noun
Any of various phosphorus-containing lipids, such as lecithin and cephalin, that are composed mainly of fatty acids, a phosphate group, and a simple organic molecule. Also called phosphatide.