tannin

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noun tan·nin \ˈta-nən\

Definition of tannin

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

  2. 2 :  a substance that has a tanning effect

Recent Examples of tannin from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tannin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of tannin

French, from tanner to tan


TANNIN Defined for English Language Learners

tannin

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noun

Definition of tannin for English Language Learners

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


TANNIN Defined for Kids

tannin

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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



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