7-dehydrocholesterol
[ -dē-hī′drō-kə-lĕs′tə-rôl′, -rōl′ ]
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n.
A provitamin present in the skin of humans as well as the milk of mammals that becomes vitamin D3 when exposed to ultraviolet light.
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Words nearby 7-dehydrocholesterol
The American Heritage® Stedman's Medical Dictionary
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