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cholesterol

Also ··ٱ·

[kuh-les-tuh-rohl, -rawl]

noun

Biochemistry.
  1. a sterol, C 27 H 46 O, that occurs in all animal tissues, especially in the brain, spinal cord, and adipose tissue, functioning chiefly as a protective agent in the skin and myelin sheaths of nerve cells, a detoxifier in the bloodstream, and as a precursor of many steroids: deposits of cholesterol form in certain pathological conditions, as gallstones and atherosclerotic plaques.

  2. the commercial form of this compound, obtained from the spinal cord of cattle, used chiefly as an emulsifying agent in cosmetics and pharmaceuticals, and in the synthesis of vitamin D.



cholesterol

/ əˈɛəˌɒ /

noun

  1. Former name: cholesterin.a sterol found in all animal tissues, blood, bile, and animal fats: a precursor of other body steroids. A high level of cholesterol in the blood is implicated in some cases of atherosclerosis, leading to heart disease. Formula: C 27 H 45 OH

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cholesterol

  1. A sterol found widely in animal and plant tissues. It is a main component of blood plasma and cell membranes, and it is an important precursor of many steroid hormones (such as the estrogens, testosterone, and cortisol), vitamin D 2, and bile acids. In vertebrates, cholesterol is manufactured by the liver or absorbed from food in the intestine. Higher than normal amounts of cholesterol in the blood are associated with higher risk for developing coronary artery disease and atherosclerosis. Chemical formula: C 27 H 46 O.

  2. See also high-density lipoprotein low-density lipoprotein

cholesterol

  1. A white soapy substance found in the tissues of the body and in certain foods, such as animal fats, oils, and egg yolks. Cholesterol has been linked to heart disease and atherosclerosis. (It collects on the walls of arteries and interferes with the flow of blood.) High levels of cholesterol in the blood are considered to be unhealthy. (See saturated fats, HDL, and LDL.)

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Word History and Origins

Origin of cholesterol1

First recorded in 1890–95; chole- + Greek ٱ(ó) “solid” ( stereo- ) + -ol 1
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Word History and Origins

Origin of cholesterol1

C19: from chole- + Greek stereos hard, solid, so called because first observed in gallstones
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Example Sentences

Examples have not been reviewed.

Most employer-provided health insurance programs cover only the minimum annual tests to gauge basic heart health and disease risks, cholesterol level and hormone health.

From

It turned out the tumour between his eye socket and brain was a cholesterol granuloma, which is a type of benign cyst.

From

“Older people too. Hypertension, high cholesterol, low-back pain and so on. It is becoming unusual for me to meet a patient who does not have a trail of prior diagnoses.”

From

In the UK men are more likely to smoke, drink alcohol, use drugs and have high cholesterol and blood pressure.

From

Paul said the drug reduced his risks of other diseases, such as heart problems and high cholesterol - which means he is likely to cost the NHS less.

From

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cholestericcholesterolaemia