Wiktionary
salvestrol
n. A natural phytoalexin that can be converted into a cytotoxic metabolite by certain enzymes that are overexpressed by cancer cells.
Wikipedia
Salvestrol
A salvestrol is a natural, dietary phytochemical that can be converted into a cytotoxic metabolite by Cytochrome P450 enzyme CYP1B1 that is overexpressed by cancer cells. The name "salvestrols" was coined by medicinal chemist Gerrard Potter. "Salvestrol" has been trademarked and is used to market dietary supplements and other products. Some salvestrol-based products contain extracts from blackcurrant, blueberry, strawberry, and tangerine peel.