lipide(n = noun.substance) lipid, lipoid - an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates);
is a kind of macromolecule, supermolecule
has particulars: fat, triglyceride, oil, phospholipid, wax

   Same as lipid. [WordNet 1.5]