7-dehydrocholesterol

[ -dē-hī′drō-kə-lĕs′tə-rôl′, -rōl′ ]

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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Nearby words

4g, 4wd, 5-hydroxytryptamine, 5bx, 606, 7-dehydrocholesterol, 78, 8d, 9-11, 9/11, 900 number

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.