Definition of cholecalciferol in English:
One of the D vitamins, a sterol that is formed by the action of sunlight on dehydrocholesterol in the skin. Deficiency of this vitamin affects calcium levels, causing rickets in children and osteomalacia in adults. Also called vitamin D3 (see vitamin D).
- The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7-dehydrocholesterol to cholecalciferol.
- Both groups received cholecalciferol and calcium carbonate oral supplementation.
- The kidney is involved in the first step in metabolism of cholecalciferol to calcidiol, the form in which it is stored, and the liver in the final conversion to the active hormone calcitriol.
Definition of cholecalciferol in:
- British & World English dictionary
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