isoflavones

/AY0 S OW0 F L EY1 V AH0 N Z/
noun
  1. 1

    Any of a class of polyphenolic phytoestrogens found in soybeans and similar plants that may have beneficial health properties

Source: https://en.wiktionary.org/wiki/isoflavone, https://en.wiktionary.org/wiki/isoflavones