Ergocalciferol

Pronunciation

Definition 1

A form of vitamin D that helps the body use calcium and phosphorus to make strong bones and teeth. It is fat-soluble (can dissolve in fats and oils) and is found in plants and yeast. It can be made in the body from another form of vitamin D when the body is exposed to the sun. Ergocalciferol is also made in the laboratory. It is used to prevent and to treat vitamin D deficiency. It is a type of dietary supplement. Also called vitamin D2. (NCI Dictionary)

Definition 2

Vitamin D2, a fat-soluble vitamin important for many biochemical processes including the absorption and metabolism of calcium and phosphorus. In vivo, ergocalciferol is formed after sun (ultraviolet) irradiation of plant-derived ergosterol, another form of vitamin D. Ergocalciferol is the form of vitamin D usually found in vitamin supplements. (NCI Thesaurus)

Definition 3

Vitamin D synthesized from 7-dehydrocholesterol in the skin after exposure to UVB radiation. (NCI Thesaurus/CRCH)

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