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

Definition of dehydrocholesterol

  1. :  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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Origin and Etymology of dehydrocholesterol

dehydr- + cholesterol

Seen and Heard

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feeling or affected by lethargy

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