: any of a class of propyl phenolic dimers including many found in plants and noted for having antioxidant and estrogenic activity
Examples of lignan in a Sentence
Recent Examples on the Web
Rye also contains phenolic compounds and lignans, antioxidants that are linked to better blood vessel function and lower inflammation, said Davar.
—
Kathleen Ferraro, Verywell Health, 12 Nov. 2025
The powerhouse seed is also a good source of antioxidants, heart-healthy omega-3 fatty acids (specifically alpha-linolenic acid), lignans, magnesium, and vitamin B1.
—Christina Chaey, Bon Appetit Magazine, 30 Sep. 2025
Flaxseeds Flaxseeds contain high levels of lignans.
—Lauren O'Connor, Health, 6 Aug. 2025
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Kathleen Ferraro, Verywell Health, 12 Nov. 2025
The powerhouse seed is also a good source of antioxidants, heart-healthy omega-3 fatty acids (specifically alpha-linolenic acid), lignans, magnesium, and vitamin B1.
—Christina Chaey, Bon Appetit Magazine, 30 Sep. 2025
Flaxseeds Flaxseeds contain high levels of lignans.
—Lauren O'Connor, Health, 6 Aug. 2025
Cite this Entry
“Lignan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lignan. Accessed 29 Nov. 2025.
Copy CitationMedical Definition
lignan
noun
lig·nan
ˈlig-ˌnan 
: any of a class of polyphenolic compounds including many found in plants and noted for having antioxidant and estrogenic activity
In the process of digestion, bacteria convert lignans into estrogen-like substances …—Wellness Letter
Wellness LetterThe major types of phytoestrogens are thought to be isoflavones, found in soy protein, and lignans, found in flaxseeds, whole grains, and some fruits and vegetables.—Consumer Reports
Consumer ReportsLove words? Need even more definitions?
Merriam-Webster unabridged
Share