phospholipid

A class of lipid molecules in which a phos- phate group is linked to glycerol and two fatty acyl groups. A chief component of biological membranes. (See Inositol phospholipid.)

A class of lipid molecules in which glycerol is linked to a phosphate group and two fatty acyl groups. Contains both polar and non-polar regions. A major component of biological membranes. See: inositol lipid.

A lipid (fat) that contains phosphorus. Phospholipids are a major part of cell membranes.