Phospholipid

Definition

noun, plural: phospholipids

(1) A lipid with one or more phosphate groups attached to it.

(2) A lipid consisting of a glycerol bound to two fatty acids and a phosphate group.

Supplement

Phospholipids are amphipathic compounds in a way that the 'head' is hydrophilic and thelipophilic 'tail' is hydrophobic. They serve as a major structural component of most biological membranes. They form the lipid bilayer in cell membranes of organisms.

Examples of phospholipids include phosphatidylethanolamine, phosphatidylinositol,phosphatidylserine, lecithin, plasmalogens and sphingomyelins.

Word origin: phosphor- » from phosphorus + -lipid » from Greek lipos, fat.

Variant: phospholipide 
Also called: phosphatide, phospholipin

Related terms:

Source:

http://www.biology-online.org/dictionary/Phospholipid