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

There are also notes of spiced nuts, caramel, tannin, pepper, and a strong dose of maple syrup. —Jonah Flicker, Robb Report, 18 Aug. 2024

At its pinnacle, Pinot Noir can be nectar from the gods, boasting flavors of smoky raspberry, sage, dill, and cedar, all wrapped up in tannins with great acidity. —Johnny Noakes, Hartford Courant, 11 June 2024

The tannins are silky smooth with flavors of cassis, black cherry, fennel pollen, and powdered dark chocolate. —Mike Desimone and Jeff Jenssen, Robb Report, 2 Aug. 2024

The tannins and natural dyes in strawberries, blueberries, raspberries, and blackberries are powerful staining agents. —Nafeesah Allen, Better Homes & Gardens, 28 July 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