ergosterol Hear it!

ergosterol definition

er·gos·terol (ʉr gäs′tər ôl′, -ōl′)

noun

a crystalline plant sterol, CHOH, formerly prepared from ergot but now chiefly from yeast: when exposed to ultraviolet rays it produces a vitamin (D) used to prevent or cure rickets

Etymology: < ergot + sterol

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