Cholesterol
WordNet
noun
(1) An animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues
WiktionaryText
Noun
- A sterol lipid synthesized by the liver and transported in the bloodstream to the membranes of all animal cells; it plays a central role in many biochemical processes and, as a lipoprotein that coats the walls of blood vessels, is associated with cardiovascular disease.