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 are terms for fats that are solid at room temperature. phospholipids are chemicals that has 1 phosphate group and 2 fatty acid tails that are attached to a glycerol. check their chemical structures. =) phospolipids are found on cell membranes while lipids are the general term for fats. just now. Report Abuse. Lipids are fatty acids (glycerol) which are soluble in alcohol but are insoluble water Phospholipids are various phosphorus-containing lipids, such as lecithin and cephalin, that are made up of mainly of fatty acids, a phosphate group, and a simple organic molecule Hope that helps :-).