cholesterol

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noun cho·les·ter·ol \kə-ˈles-tə-ˌrōl, -ˌrȯl\

Definition of cholesterol

  1. :  a steroid alcohol C27H45OH that is present in animal cells and body fluids, regulates membrane fluidity, and functions as a precursor molecule in various metabolic pathways and as a constituent of LDL may cause atherosclerosis — compare bad cholesterol, good cholesterol

Examples of cholesterol in a sentence

  1. Did your doctor check your cholesterol?

Origin and Etymology of cholesterol

International Scientific Vocabulary, from chol- + Greek stereos solid


First Known Use: 1894

Other Biochemistry Terms


CHOLESTEROL Defined for English Language Learners

cholesterol

play
noun cho·les·ter·ol \kə-ˈles-tə-ˌrōl, -ˌrȯl\

Definition of cholesterol for English Language Learners

  • : a substance that is found in the bodies of people and animals


Medical Dictionary

cholesterol

play
noun cho·les·ter·ol \kə-ˈles-tə-ˌrōl, -ˌrȯl\

Medical Definition of cholesterol

  1. :  a steroid alcohol C27H45OH that is present in animal cells and body fluids, regulates membrane fluidity, functions as a precursor molecule in various metabolic pathways, and as a constituent of LDL may cause atherosclerosis Cholesterol is a lipid present in the cell membrane and subcellular organelles of tissues throughout the body. … In addition, cholesterol serves as the building block for all steroid hormones including cortisol, aldosterone, estrogen, and testosterone.—Sarah de Ferranti and David S. Ludwig, The New England Journal of Medicine, 25 Sept. 2008 … the drug reduces the production of cholesterol in the liver, decreasing the amount of artery-clogging cholesterol circulating in the bloodstream.—Newsweek, 8 Dec. 1986

Illustration of cholesterol





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