phospholipid: any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base; an important constituent of membranes
lipid: an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates)
stuart: the royal family that ruled Scotland from 1371-1714 and ruled England from 1603 to 1649 and again from 1660 to 1714