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
: a substance that has a tanning effect
Examples of tannin in a Sentence
Recent Examples on the Web
The palate mirrors this and adds tannins to the benefit of the jasmine.
—
Hudson Lindenberger, Forbes.com, 3 June 2025
Best of all, tea contains a specific type of tannin polyphenol called ellagitannin, which has been shown to benefit the growth of healthy gut bacteria.
—Christina Pérez, Vogue, 27 May 2025
Silky tannins and bright fruit notes pair wonderfully with the dish’s pungent, earthy flavors.
—AFAR Media, 20 May 2025
No slouch in the acid and tannin departments is the bold 2021 Centennial Mountain Nebbiolo.
—Laura Ness, Mercury News, 13 May 2025
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Hudson Lindenberger, Forbes.com, 3 June 2025
Best of all, tea contains a specific type of tannin polyphenol called ellagitannin, which has been shown to benefit the growth of healthy gut bacteria.
—Christina Pérez, Vogue, 27 May 2025
Silky tannins and bright fruit notes pair wonderfully with the dish’s pungent, earthy flavors.
—AFAR Media, 20 May 2025
No slouch in the acid and tannin departments is the bold 2021 Centennial Mountain Nebbiolo.
—Laura Ness, Mercury News, 13 May 2025
See All Example Sentences for tannin
Cite this Entry
“Tannin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tannin. Accessed 10 Jun. 2025.
Copy CitationKids Definition
tannin
noun
tan·nin
ˈtan-ən 
: any of various substances from plants (as the oak or sumac) used in tanning leather, dyeing fabric and yarn, the making of ink, and in medicine
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