dehydrocholesterol

noun
de·​hy·​dro·​cholesterol | \ dē¦hīdrō+\

Definition of dehydrocholesterol

: a crystalline steroid alcohol C27H43OH that occurs chiefly in higher animals and humans (as in the skin), that is made synthetically from cholesterol, and that yields vitamin D3 on irradiation with ultraviolet light

called also 7-dehydrocholesterol

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History and Etymology for dehydrocholesterol

dehydr- + cholesterol

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