Definition of "lanosterol" [lanosterol]

• A triterpenoid sterol found in lanolin (noun)

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• "This lanosterol is then transformed in a complicated series of reactions into cholesterol, which has twenty-seven carbon atoms."
• "The related substance lanosterol is perhaps less familiar but very important from the scientific point of view."
• "They've documented the interactions of nearly every molecule, the way hydroxymethylglutaryl-coenzyme A reductase catalyzes the production of mevalonate, which gets phosphorylated and condensed before undergoing a sequence of electron shifts until it becomes lanosterol and then, after another 19 chemical reactions, finally morphs into cholesterol."