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vitamin D3
noun
- a D vitamin, C 27 H 43 OH, occurring in fish-liver oils, that differs from vitamin D 2 by slight structural differences in the molecule.
vitamin D3
vitamin D3
- A colorless, crystalline steroid hormone that the body synthesizes in the skin when its precursor, a derivative of cholesterol, is irradiated by sunlight. Vitamin D 3 is also found in fish-liver oils, irradiated milk, and all irradiated animal foodstuffs. Also called calciferol, cholecalciferol. Chemical formula: C 27 H 44 O.
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Example Sentences
Vitamin D3—Most of you reading this are probably vitamin D deficient if you wear clothes and work indoors.
From The Daily Beast
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