a plant sterol that is converted into vitamin D by the action of ultraviolet radiation. Formula: C28H43OH
WordReference Random House Unabridged Dictionary of American English © 2025
er•gos•ter•ol
(ûr gos′tə rōl′, -rôl),USA pronunciation n. [Biochem.]
- Biochemistrya colorless, crystalline, water-insoluble sterol, C28H43OH, that occurs in ergot and yeast and that, when irradiated with ultraviolet light, is converted to vitamin D.
- ergo-2 + sterol 1885–90
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