viosterol

vi·os·ter·ol

 (vī-ŏs′tə-rôl′, -rōl′)

n.

A preparation of vitamin D₂ obtained from ultraviolet irradiation of ergosterol, formerly used medicinally.

---

[(ultra)vio(let) + (ergo)sterol.]

viosterol

(vaɪˈɒstəˌrɒl)

n

(Pharmacology) vitamin D2, a fat soluble vitamin activated by ultraviolet radiation and which prevents rickets

Thesaurus

Noun

1.

viosterol - a fat-soluble vitamin that prevents rickets calciferol, cholecalciferol, D, ergocalciferol, vitamin D ergosterol - a plant sterol that is converted into vitamin D by ultraviolet radiation fat-soluble vitamin - any vitamin that is soluble in fats