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Meaning of ergosterol

er•gos•ter•ol

Pronunciation: (ûr-gos'tu-rōl", -rôl), [key]
— n. Biochem.
  1. a colorless, crystalline, water-insoluble sterol, CHOH, that occurs in ergot and yeast and that, when irradiated with ultraviolet light, is converted to vitamin D.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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