Definition of SET THEORY. : a branch of mathematics or of symbolic logic that deals with the nature and relations of sets. â set theoretic adjective. See set theory defined for kids. ADVERTISEMENT.
Broadly, the term lipid is encompasses fats (including saturated, monoglyceride, diglyceride and triglyceride), waxes, sterols, phospholipids in the membranes of cells and fat soluble vitamins. Lipid is a basic term representing a molecule that is fat soluble (vs. water soluble).
Lipids and fats are used interchangibly, although fats are usually used to refer lipids that are solid at room temperature. Triglyceride is a type of lipid. Triglycerides are also called triacylglyceride. If triglycerides are hydrolised, they will yield three fatty acid molecules and a glycerol.ipids and fats are used interchangibly, although fats are usually used to refer lipids that are solid at room temperature. Triglyceride is a type of lipid. Triglycerides are also called triacylglyceride. If triglycerides are hydrolised, they will yield three fatty acid molecules and a glycerol.