tannin

noun

tan·​nin ˈta-nən 

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

Red wines should also be light to medium bodied, dry with low or refined tannins. —Peg San Felippo, Sun Sentinel, 21 June 2024

The elegant tannins and balanced acidity come courtesy of winemaker Andrea Leon’s nimble decision to begin the harvest early due to warm conditions in 2020. —Mike Desimone and Jeff Jenssen, Robb Report, 13 June 2024

The reds here lean towards more earthy notes to accompany the red and black fruit, all backed up with vibrant acidity and tannins, as compared to their California counterparts that, because of hotter temperatures, tend to be more fruit-forward with more weight on the palate. —Johnny Noakes, Hartford Courant, 20 May 2024

Château Montrose With dark, intense color; pure blackberry-fruit nose; fine, smooth tannins; and a concentrated dark-fruit character, this is one of the best on the Left Bank. —Elin McCoy, Fortune Europe, 11 May 2024

Word History

Etymology

French, from tanner to tan

First Known Use

1802, in the meaning defined at sense 1

Kids 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

Medical Definition

tannin

noun

tan·​nin ˈtan-ən 

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

: a substance that has a tanning effect