Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

lignan

noun lig·nan \ˈlig-ˌnan\

Definition of lignan

  1. :  any of a class of propyl phenolic dimers including many found in plants and noted for having antioxidant and estrogenic activity



Origin of lignan

International Scientific Vocabulary lign- + 3-an


First Known Use: 1944


Medical Dictionary

lignan

play
noun lig·nan \ˈlig-ˌnan\

Medical Definition of lignan

  1. :  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, June 1999> <The 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, January 1999>




Learn More about lignan

  1. Medical Dictionary: Definition of "lignan"


Seen and Heard

What made you want to look up lignan? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a division or portion of a pool or whole

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1926873504

Which of the following best describes an easily irritated person?

superficial flashy tetchy gregarious
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ