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Related to phytoestrogen: black cohosh
A plant constituent with a structure similar to that of estrogen.
phytoestrogen/phy·to·es·tro·gen/ (-es´tro-jen) any of a group of weakly estrogenic, nonsteroidal compounds widely occurring in plants.
Any of a group of nonsteroidal substances found in plants, including isoflavones, that are structurally similar to estrogen and can mimic or modulate the action of endogenous estrogen when ingested by humans and other animals.