lignan

The lignans are a group of chemical compounds found in plants. Lignans are one of the major classes of phytoestrogens, which are estrogen-like chemicals and also act as  antioxidants. The other classes of phytoestrogens are the isoflavones, and coumestans. Plant lignans are polyphenolic substances derived from phenylalanine via dimerization of substituted cinnamic alcohols (see cinnamic acid), known as monolignols, to a dibenzylbutane skeleton 2. This reaction is catalysed by oxidative enzymes and is often controlled by dirigent proteins.
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Lignans, n.pl chemicals derived from flaxseeds, pumpkin seeds, cranberries, tea, and whole grains; have phytoestrogenic properties and are used as [more]Lignan - Community and Resources

A member of a group of substances found in plants that have shown estrogenic and anticancer effects. Lignans have been used in some cultures to treat certain medical problems.

Any of a class of phytoestrogenic resins that may be anticarcinogenic.