Cholesterol
/kəˈlɛstəˌrɔl/
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Definition
(noun) 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.
Sentence Examples
My cholesterol levels are high.
My cholesterol is high.
CEFR Practice Quiz
High levels of ____ in the blood can increase the risk of heart disease.