from The American Heritage® Dictionary of the English Language, 5th Edition.
noun 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. Cholesterol is transported through the bloodstream as different types of lipoproteins, two of which (HDL cholesterol and LDL cholesterol) are routinely measured in blood tests.
noun HDL cholesterol.
noun LDL cholesterol.
from The Century Dictionary.
noun Same as cholesterin. The termination -ol is used to indicate that chemically the substance belongs to the class of alcohols.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
noun biochemistry A sterollipidsynthesized by the liver and transported in the bloodstream to the membranes of all animalcells; it plays a central role in many biochemical processes and, as a lipoprotein that coats the walls of blood vessels, is associated with cardiovasculardisease.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[cholester(in), former name for cholesterol (chole– + Greek stereos, solid; see ster- in Indo-European roots + –in) + –ol (so called because it was first found in gallstones).]
from Wiktionary, Creative Commons Attribution/Share-Alike License
chole- + sterol
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The word cholesterol engenders fear across the board.
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