Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A white crystalline substance, C27H45OH, found in animal tissues and various foods, that is normally synthesized by the liver and is important as a constituent of cell membranes and a precursor to steroid hormones. Its level in the bloodstream can influence the pathogenesis of certain conditions, such as the development of atherosclerotic plaque and coronary artery disease.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. Same as cholesterin. The termination -ol is used to indicate that chemically the substance belongs to the class of alcohols.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues

Etymologies

cholester(in), former name for cholesterol (chole- + Greek stereos, solid; see ster-1 in Indo-European roots + -in) + -ol1 (so called because it was first found in gallstones).
(American Heritage® Dictionary of the English Language, Fourth Edition)
chole- +‎ sterol (Wiktionary)

Examples

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