Definitions for cholesterolkəˈlɛs təˌroʊl, -ˌrɔl
This page provides all possible meanings and translations of the word cholesterol
Random House Webster's College Dictionary
cho•les•ter•olkəˈlɛs təˌroʊl, -ˌrɔl(n.)
a sterol, C27H46O, abundant in animal fats, brain and nerve tissue, meat, and eggs, that functions in the body as a membrane constituent and as a precursor of steroid hormones and bile acids: high blood levels are associated with arteriosclerosis and gallstones.
Origin of cholesterol:
1890–95; chole - + Gk ster(eós) solid
an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues
Kernerman English Learner's Dictionary
cholesterol(noun)əˈlɛs təˌroʊl, -ˌrɔl
a substance that can clog blood vessels
foods high/low in cholesterol; high/low cholesterol levels
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.
Cholesterol, from the Ancient Greek chole- and stereos followed by the chemical suffix -ol for an alcohol, is an organic molecule. It is a sterol, and an essential structural component of animal cell membranes that is required to establish proper membrane permeability and fluidity. In addition to its importance within cells, cholesterol also serves as a precursor for the biosynthesis of steroid hormones, bile acids, and vitamin D. Cholesterol is the principal sterol synthesized by animals; in vertebrates it is formed predominantly in the liver. It is almost completely absent among prokaryotes, although there are some exceptions such as Mycoplasma, which require cholesterol for growth. François Poulletier de la Salle first identified cholesterol in solid form in gallstones in 1769. However, it was not until 1815 that chemist Michel Eugène Chevreul named the compound "cholesterine".
U.S. National Library of Medicine
The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.
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