Medical Dictionary
tachysterol
noun ta·chys·ter·ol \ta-ˈkist-ə-ˌrȯl, -ˌrōl\
Medical Definition of TACHYSTEROL
: an oily liquid alcohol C28H43OH isomeric with ergosterol that is formed by ultraviolet irradiation of ergosterol or lumisterol and that on further irradiation yields vitamin D2—see dihydrotachysterol
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