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Spell cholesterol with ch- at the beginning and -sterol at the end.
Definition of cholesterol
- a compound of the sterol type found in most body tissues, including the blood and the nerves. Cholesterol and its derivatives are important constituents of cell membranes and precursors of other steroid compounds, but high concentrations in the blood (mainly derived from animal fats in the diet) are thought to promote atherosclerosis.
- Chemical formula: C27H45OH
late 19th century: from Greek kholē 'bile' + stereos 'stiff' + -ol