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

tannin

play
noun tan·nin \ˈta-nən\

Simple Definition of tannin

  • : a reddish acid that comes from plants, is used in making ink and leather, and occurs in various foods and drinks (such as wine)

Source: Merriam-Webster's Learner's Dictionary

Full Definition of tannin

  1. 1 :  any of various soluble astringent complex phenolic substances of plant origin used especially in tanning leather and dyeing fabric, manufacturing ink, clarifying wine and beer, and in medicine

  2. 2 :  a substance that has a tanning effect

Origin and Etymology of tannin

French, from tanner to tan


First Known Use: 1802

Rhymes with tannin


TANNIN Defined for Kids

tannin

play
noun tan·nin \ˈta-nən\

Definition of tannin for Students

  1. :  a substance often made from oak bark or sumac and used in tanning animal hides, dyeing fabric and yarn, and making ink




Medical Dictionary

tannin

play
noun tan·nin \ˈtan-ən\

Medical Definition of tannin

  1. 1:  any of various soluble astringent complex phenolic substances of plant origin used in tanning, dyeing, the making of ink, and in medicine as astringents and formerly in the treatment of burns

  2. 2:  a substance that has a tanning effect




Learn More about tannin


Seen and Heard

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

WORD OF THE DAY

the lowest point

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

fox-in-summer-forest

Which of these is a synonym of inchoate?

frightening experimental massive formless
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